diff options
Diffstat (limited to 'drivers/fpga')
-rw-r--r-- | drivers/fpga/altera-cvp.c | 8 | ||||
-rw-r--r-- | drivers/fpga/altera-fpga2sdram.c | 8 | ||||
-rw-r--r-- | drivers/fpga/altera-freeze-bridge.c | 13 | ||||
-rw-r--r-- | drivers/fpga/altera-hps2fpga.c | 7 | ||||
-rw-r--r-- | drivers/fpga/altera-pr-ip-core.c | 9 | ||||
-rw-r--r-- | drivers/fpga/altera-ps-spi.c | 11 | ||||
-rw-r--r-- | drivers/fpga/dfl-afu-dma-region.c | 2 | ||||
-rw-r--r-- | drivers/fpga/dfl-fme-br.c | 11 | ||||
-rw-r--r-- | drivers/fpga/dfl-fme-mgr.c | 13 | ||||
-rw-r--r-- | drivers/fpga/dfl-fme-region.c | 6 | ||||
-rw-r--r-- | drivers/fpga/dfl.c | 6 | ||||
-rw-r--r-- | drivers/fpga/fpga-bridge.c | 68 | ||||
-rw-r--r-- | drivers/fpga/fpga-mgr.c | 64 | ||||
-rw-r--r-- | drivers/fpga/fpga-region.c | 65 | ||||
-rw-r--r-- | drivers/fpga/ice40-spi.c | 10 | ||||
-rw-r--r-- | drivers/fpga/machxo2-spi.c | 11 | ||||
-rw-r--r-- | drivers/fpga/of-fpga-region.c | 6 | ||||
-rw-r--r-- | drivers/fpga/socfpga-a10.c | 5 | ||||
-rw-r--r-- | drivers/fpga/socfpga.c | 10 | ||||
-rw-r--r-- | drivers/fpga/ts73xx-fpga.c | 11 | ||||
-rw-r--r-- | drivers/fpga/xilinx-pr-decoupler.c | 4 | ||||
-rw-r--r-- | drivers/fpga/xilinx-spi.c | 12 | ||||
-rw-r--r-- | drivers/fpga/zynq-fpga.c | 5 |
23 files changed, 225 insertions, 140 deletions
diff --git a/drivers/fpga/altera-cvp.c b/drivers/fpga/altera-cvp.c index 7fa793672a7a..610a1558e0ed 100644 --- a/drivers/fpga/altera-cvp.c +++ b/drivers/fpga/altera-cvp.c @@ -453,8 +453,8 @@ static int altera_cvp_probe(struct pci_dev *pdev, snprintf(conf->mgr_name, sizeof(conf->mgr_name), "%s @%s", ALTERA_CVP_MGR_NAME, pci_name(pdev)); - mgr = fpga_mgr_create(&pdev->dev, conf->mgr_name, - &altera_cvp_ops, conf); + mgr = devm_fpga_mgr_create(&pdev->dev, conf->mgr_name, + &altera_cvp_ops, conf); if (!mgr) { ret = -ENOMEM; goto err_unmap; @@ -463,10 +463,8 @@ static int altera_cvp_probe(struct pci_dev *pdev, pci_set_drvdata(pdev, mgr); ret = fpga_mgr_register(mgr); - if (ret) { - fpga_mgr_free(mgr); + if (ret) goto err_unmap; - } ret = driver_create_file(&altera_cvp_driver.driver, &driver_attr_chkcfg); diff --git a/drivers/fpga/altera-fpga2sdram.c b/drivers/fpga/altera-fpga2sdram.c index 23660ccd634b..a78e49c63c64 100644 --- a/drivers/fpga/altera-fpga2sdram.c +++ b/drivers/fpga/altera-fpga2sdram.c @@ -121,18 +121,16 @@ static int alt_fpga_bridge_probe(struct platform_device *pdev) /* Get f2s bridge configuration saved in handoff register */ regmap_read(sysmgr, SYSMGR_ISWGRP_HANDOFF3, &priv->mask); - br = fpga_bridge_create(dev, F2S_BRIDGE_NAME, - &altera_fpga2sdram_br_ops, priv); + br = devm_fpga_bridge_create(dev, F2S_BRIDGE_NAME, + &altera_fpga2sdram_br_ops, priv); if (!br) return -ENOMEM; platform_set_drvdata(pdev, br); ret = fpga_bridge_register(br); - if (ret) { - fpga_bridge_free(br); + if (ret) return ret; - } dev_info(dev, "driver initialized with handoff %08x\n", priv->mask); diff --git a/drivers/fpga/altera-freeze-bridge.c b/drivers/fpga/altera-freeze-bridge.c index ffd586c48ecf..dd58c4aea92e 100644 --- a/drivers/fpga/altera-freeze-bridge.c +++ b/drivers/fpga/altera-freeze-bridge.c @@ -213,7 +213,6 @@ static int altera_freeze_br_probe(struct platform_device *pdev) struct fpga_bridge *br; struct resource *res; u32 status, revision; - int ret; if (!np) return -ENODEV; @@ -245,20 +244,14 @@ static int altera_freeze_br_probe(struct platform_device *pdev) priv->base_addr = base_addr; - br = fpga_bridge_create(dev, FREEZE_BRIDGE_NAME, - &altera_freeze_br_br_ops, priv); + br = devm_fpga_bridge_create(dev, FREEZE_BRIDGE_NAME, + &altera_freeze_br_br_ops, priv); if (!br) return -ENOMEM; platform_set_drvdata(pdev, br); - ret = fpga_bridge_register(br); - if (ret) { - fpga_bridge_free(br); - return ret; - } - - return 0; + return fpga_bridge_register(br); } static int altera_freeze_br_remove(struct platform_device *pdev) diff --git a/drivers/fpga/altera-hps2fpga.c b/drivers/fpga/altera-hps2fpga.c index a974d3f60321..77b95f251821 100644 --- a/drivers/fpga/altera-hps2fpga.c +++ b/drivers/fpga/altera-hps2fpga.c @@ -180,7 +180,8 @@ static int alt_fpga_bridge_probe(struct platform_device *pdev) } } - br = fpga_bridge_create(dev, priv->name, &altera_hps2fpga_br_ops, priv); + br = devm_fpga_bridge_create(dev, priv->name, + &altera_hps2fpga_br_ops, priv); if (!br) { ret = -ENOMEM; goto err; @@ -190,12 +191,10 @@ static int alt_fpga_bridge_probe(struct platform_device *pdev) ret = fpga_bridge_register(br); if (ret) - goto err_free; + goto err; return 0; -err_free: - fpga_bridge_free(br); err: clk_disable_unprepare(priv->clk); diff --git a/drivers/fpga/altera-pr-ip-core.c b/drivers/fpga/altera-pr-ip-core.c index 65e0b6a2c031..a7a3bf0b5202 100644 --- a/drivers/fpga/altera-pr-ip-core.c +++ b/drivers/fpga/altera-pr-ip-core.c @@ -177,7 +177,6 @@ int alt_pr_register(struct device *dev, void __iomem *reg_base) { struct alt_pr_priv *priv; struct fpga_manager *mgr; - int ret; u32 val; priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); @@ -192,17 +191,13 @@ int alt_pr_register(struct device *dev, void __iomem *reg_base) (val & ALT_PR_CSR_STATUS_MSK) >> ALT_PR_CSR_STATUS_SFT, (int)(val & ALT_PR_CSR_PR_START)); - mgr = fpga_mgr_create(dev, dev_name(dev), &alt_pr_ops, priv); + mgr = devm_fpga_mgr_create(dev, dev_name(dev), &alt_pr_ops, priv); if (!mgr) return -ENOMEM; dev_set_drvdata(dev, mgr); - ret = fpga_mgr_register(mgr); - if (ret) - fpga_mgr_free(mgr); - - return ret; + return fpga_mgr_register(mgr); } EXPORT_SYMBOL_GPL(alt_pr_register); diff --git a/drivers/fpga/altera-ps-spi.c b/drivers/fpga/altera-ps-spi.c index 24b25c626036..33aafda50af5 100644 --- a/drivers/fpga/altera-ps-spi.c +++ b/drivers/fpga/altera-ps-spi.c @@ -239,7 +239,6 @@ static int altera_ps_probe(struct spi_device *spi) struct altera_ps_conf *conf; const struct of_device_id *of_id; struct fpga_manager *mgr; - int ret; conf = devm_kzalloc(&spi->dev, sizeof(*conf), GFP_KERNEL); if (!conf) @@ -275,18 +274,14 @@ static int altera_ps_probe(struct spi_device *spi) snprintf(conf->mgr_name, sizeof(conf->mgr_name), "%s %s", dev_driver_string(&spi->dev), dev_name(&spi->dev)); - mgr = fpga_mgr_create(&spi->dev, conf->mgr_name, - &altera_ps_ops, conf); + mgr = devm_fpga_mgr_create(&spi->dev, conf->mgr_name, + &altera_ps_ops, conf); if (!mgr) return -ENOMEM; spi_set_drvdata(spi, mgr); - ret = fpga_mgr_register(mgr); - if (ret) - fpga_mgr_free(mgr); - - return ret; + return fpga_mgr_register(mgr); } static int altera_ps_remove(struct spi_device *spi) diff --git a/drivers/fpga/dfl-afu-dma-region.c b/drivers/fpga/dfl-afu-dma-region.c index 0e81d33af856..025aba3ea76c 100644 --- a/drivers/fpga/dfl-afu-dma-region.c +++ b/drivers/fpga/dfl-afu-dma-region.c @@ -70,7 +70,7 @@ static int afu_dma_adjust_locked_vm(struct device *dev, long npages, bool incr) dev_dbg(dev, "[%d] RLIMIT_MEMLOCK %c%ld %ld/%ld%s\n", current->pid, incr ? '+' : '-', npages << PAGE_SHIFT, current->mm->locked_vm << PAGE_SHIFT, rlimit(RLIMIT_MEMLOCK), - ret ? "- execeeded" : ""); + ret ? "- exceeded" : ""); up_write(¤t->mm->mmap_sem); diff --git a/drivers/fpga/dfl-fme-br.c b/drivers/fpga/dfl-fme-br.c index 7cc041def8b3..3ff9f3a687ce 100644 --- a/drivers/fpga/dfl-fme-br.c +++ b/drivers/fpga/dfl-fme-br.c @@ -61,7 +61,6 @@ static int fme_br_probe(struct platform_device *pdev) struct device *dev = &pdev->dev; struct fme_br_priv *priv; struct fpga_bridge *br; - int ret; priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); if (!priv) @@ -69,18 +68,14 @@ static int fme_br_probe(struct platform_device *pdev) priv->pdata = dev_get_platdata(dev); - br = fpga_bridge_create(dev, "DFL FPGA FME Bridge", - &fme_bridge_ops, priv); + br = devm_fpga_bridge_create(dev, "DFL FPGA FME Bridge", + &fme_bridge_ops, priv); if (!br) return -ENOMEM; platform_set_drvdata(pdev, br); - ret = fpga_bridge_register(br); - if (ret) - fpga_bridge_free(br); - - return ret; + return fpga_bridge_register(br); } static int fme_br_remove(struct platform_device *pdev) diff --git a/drivers/fpga/dfl-fme-mgr.c b/drivers/fpga/dfl-fme-mgr.c index b5ef405b6d88..76f37709dd1a 100644 --- a/drivers/fpga/dfl-fme-mgr.c +++ b/drivers/fpga/dfl-fme-mgr.c @@ -201,7 +201,7 @@ static int fme_mgr_write(struct fpga_manager *mgr, } if (count < 4) { - dev_err(dev, "Invaild PR bitstream size\n"); + dev_err(dev, "Invalid PR bitstream size\n"); return -EINVAL; } @@ -287,7 +287,6 @@ static int fme_mgr_probe(struct platform_device *pdev) struct fme_mgr_priv *priv; struct fpga_manager *mgr; struct resource *res; - int ret; priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); if (!priv) @@ -309,19 +308,15 @@ static int fme_mgr_probe(struct platform_device *pdev) fme_mgr_get_compat_id(priv->ioaddr, compat_id); - mgr = fpga_mgr_create(dev, "DFL FME FPGA Manager", - &fme_mgr_ops, priv); + mgr = devm_fpga_mgr_create(dev, "DFL FME FPGA Manager", + &fme_mgr_ops, priv); if (!mgr) return -ENOMEM; mgr->compat_id = compat_id; platform_set_drvdata(pdev, mgr); - ret = fpga_mgr_register(mgr); - if (ret) - fpga_mgr_free(mgr); - - return ret; + return fpga_mgr_register(mgr); } static int fme_mgr_remove(struct platform_device *pdev) diff --git a/drivers/fpga/dfl-fme-region.c b/drivers/fpga/dfl-fme-region.c index 51a5ac2293a7..ec134ec93f08 100644 --- a/drivers/fpga/dfl-fme-region.c +++ b/drivers/fpga/dfl-fme-region.c @@ -39,7 +39,7 @@ static int fme_region_probe(struct platform_device *pdev) if (IS_ERR(mgr)) return -EPROBE_DEFER; - region = fpga_region_create(dev, mgr, fme_region_get_bridges); + region = devm_fpga_region_create(dev, mgr, fme_region_get_bridges); if (!region) { ret = -ENOMEM; goto eprobe_mgr_put; @@ -51,14 +51,12 @@ static int fme_region_probe(struct platform_device *pdev) ret = fpga_region_register(region); if (ret) - goto region_free; + goto eprobe_mgr_put; dev_dbg(dev, "DFL FME FPGA Region probed\n"); return 0; -region_free: - fpga_region_free(region); eprobe_mgr_put: fpga_mgr_put(mgr); return ret; diff --git a/drivers/fpga/dfl.c b/drivers/fpga/dfl.c index a9b521bccb06..2c09e502e721 100644 --- a/drivers/fpga/dfl.c +++ b/drivers/fpga/dfl.c @@ -899,7 +899,7 @@ dfl_fpga_feature_devs_enumerate(struct dfl_fpga_enum_info *info) if (!cdev) return ERR_PTR(-ENOMEM); - cdev->region = fpga_region_create(info->dev, NULL, NULL); + cdev->region = devm_fpga_region_create(info->dev, NULL, NULL); if (!cdev->region) { ret = -ENOMEM; goto free_cdev_exit; @@ -911,7 +911,7 @@ dfl_fpga_feature_devs_enumerate(struct dfl_fpga_enum_info *info) ret = fpga_region_register(cdev->region); if (ret) - goto free_region_exit; + goto free_cdev_exit; /* create and init build info for enumeration */ binfo = devm_kzalloc(info->dev, sizeof(*binfo), GFP_KERNEL); @@ -942,8 +942,6 @@ dfl_fpga_feature_devs_enumerate(struct dfl_fpga_enum_info *info) unregister_region_exit: fpga_region_unregister(cdev->region); -free_region_exit: - fpga_region_free(cdev->region); free_cdev_exit: devm_kfree(info->dev, cdev); return ERR_PTR(ret); diff --git a/drivers/fpga/fpga-bridge.c b/drivers/fpga/fpga-bridge.c index c983dac97501..80bd8f1b2aa6 100644 --- a/drivers/fpga/fpga-bridge.c +++ b/drivers/fpga/fpga-bridge.c @@ -324,6 +324,9 @@ ATTRIBUTE_GROUPS(fpga_bridge); * @br_ops: pointer to structure of fpga bridge ops * @priv: FPGA bridge private data * + * The caller of this function is responsible for freeing the bridge with + * fpga_bridge_free(). Using devm_fpga_bridge_create() instead is recommended. + * * Return: struct fpga_bridge or NULL */ struct fpga_bridge *fpga_bridge_create(struct device *dev, const char *name, @@ -378,8 +381,8 @@ error_kfree: EXPORT_SYMBOL_GPL(fpga_bridge_create); /** - * fpga_bridge_free - free a fpga bridge and its id - * @bridge: FPGA bridge struct created by fpga_bridge_create + * fpga_bridge_free - free a fpga bridge created by fpga_bridge_create() + * @bridge: FPGA bridge struct */ void fpga_bridge_free(struct fpga_bridge *bridge) { @@ -388,9 +391,56 @@ void fpga_bridge_free(struct fpga_bridge *bridge) } EXPORT_SYMBOL_GPL(fpga_bridge_free); +static void devm_fpga_bridge_release(struct device *dev, void *res) +{ + struct fpga_bridge *bridge = *(struct fpga_bridge **)res; + + fpga_bridge_free(bridge); +} + /** - * fpga_bridge_register - register a fpga bridge - * @bridge: FPGA bridge struct created by fpga_bridge_create + * devm_fpga_bridge_create - create and init a managed struct fpga_bridge + * @dev: FPGA bridge device from pdev + * @name: FPGA bridge name + * @br_ops: pointer to structure of fpga bridge ops + * @priv: FPGA bridge private data + * + * This function is intended for use in a FPGA bridge driver's probe function. + * After the bridge driver creates the struct with devm_fpga_bridge_create(), it + * should register the bridge with fpga_bridge_register(). The bridge driver's + * remove function should call fpga_bridge_unregister(). The bridge struct + * allocated with this function will be freed automatically on driver detach. + * This includes the case of a probe function returning error before calling + * fpga_bridge_register(), the struct will still get cleaned up. + * + * Return: struct fpga_bridge or NULL + */ +struct fpga_bridge +*devm_fpga_bridge_create(struct device *dev, const char *name, + const struct fpga_bridge_ops *br_ops, void *priv) +{ + struct fpga_bridge **ptr, *bridge; + + ptr = devres_alloc(devm_fpga_bridge_release, sizeof(*ptr), GFP_KERNEL); + if (!ptr) + return NULL; + + bridge = fpga_bridge_create(dev, name, br_ops, priv); + if (!bridge) { + devres_free(ptr); + } else { + *ptr = bridge; + devres_add(dev, ptr); + } + + return bridge; +} +EXPORT_SYMBOL_GPL(devm_fpga_bridge_create); + +/** + * fpga_bridge_register - register a FPGA bridge + * + * @bridge: FPGA bridge struct * * Return: 0 for success, error code otherwise. */ @@ -412,8 +462,11 @@ int fpga_bridge_register(struct fpga_bridge *bridge) EXPORT_SYMBOL_GPL(fpga_bridge_register); /** - * fpga_bridge_unregister - unregister and free a fpga bridge - * @bridge: FPGA bridge struct created by fpga_bridge_create + * fpga_bridge_unregister - unregister a FPGA bridge + * + * @bridge: FPGA bridge struct + * + * This function is intended for use in a FPGA bridge driver's remove function. */ void fpga_bridge_unregister(struct fpga_bridge *bridge) { @@ -430,9 +483,6 @@ EXPORT_SYMBOL_GPL(fpga_bridge_unregister); static void fpga_bridge_dev_release(struct device *dev) { - struct fpga_bridge *bridge = to_fpga_bridge(dev); - - fpga_bridge_free(bridge); } static int __init fpga_bridge_dev_init(void) diff --git a/drivers/fpga/fpga-mgr.c b/drivers/fpga/fpga-mgr.c index a41b07e37884..c3866816456a 100644 --- a/drivers/fpga/fpga-mgr.c +++ b/drivers/fpga/fpga-mgr.c @@ -558,6 +558,9 @@ EXPORT_SYMBOL_GPL(fpga_mgr_unlock); * @mops: pointer to structure of fpga manager ops * @priv: fpga manager private data * + * The caller of this function is responsible for freeing the struct with + * fpga_mgr_free(). Using devm_fpga_mgr_create() instead is recommended. + * * Return: pointer to struct fpga_manager or NULL */ struct fpga_manager *fpga_mgr_create(struct device *dev, const char *name, @@ -618,8 +621,8 @@ error_kfree: EXPORT_SYMBOL_GPL(fpga_mgr_create); /** - * fpga_mgr_free - deallocate a FPGA manager - * @mgr: fpga manager struct created by fpga_mgr_create + * fpga_mgr_free - free a FPGA manager created with fpga_mgr_create() + * @mgr: fpga manager struct */ void fpga_mgr_free(struct fpga_manager *mgr) { @@ -628,9 +631,55 @@ void fpga_mgr_free(struct fpga_manager *mgr) } EXPORT_SYMBOL_GPL(fpga_mgr_free); +static void devm_fpga_mgr_release(struct device *dev, void *res) +{ + struct fpga_manager *mgr = *(struct fpga_manager **)res; + + fpga_mgr_free(mgr); +} + +/** + * devm_fpga_mgr_create - create and initialize a managed FPGA manager struct + * @dev: fpga manager device from pdev + * @name: fpga manager name + * @mops: pointer to structure of fpga manager ops + * @priv: fpga manager private data + * + * This function is intended for use in a FPGA manager driver's probe function. + * After the manager driver creates the manager struct with + * devm_fpga_mgr_create(), it should register it with fpga_mgr_register(). The + * manager driver's remove function should call fpga_mgr_unregister(). The + * manager struct allocated with this function will be freed automatically on + * driver detach. This includes the case of a probe function returning error + * before calling fpga_mgr_register(), the struct will still get cleaned up. + * + * Return: pointer to struct fpga_manager or NULL + */ +struct fpga_manager *devm_fpga_mgr_create(struct device *dev, const char *name, + const struct fpga_manager_ops *mops, + void *priv) +{ + struct fpga_manager **ptr, *mgr; + + ptr = devres_alloc(devm_fpga_mgr_release, sizeof(*ptr), GFP_KERNEL); + if (!ptr) + return NULL; + + mgr = fpga_mgr_create(dev, name, mops, priv); + if (!mgr) { + devres_free(ptr); + } else { + *ptr = mgr; + devres_add(dev, ptr); + } + + return mgr; +} +EXPORT_SYMBOL_GPL(devm_fpga_mgr_create); + /** * fpga_mgr_register - register a FPGA manager - * @mgr: fpga manager struct created by fpga_mgr_create + * @mgr: fpga manager struct * * Return: 0 on success, negative error code otherwise. */ @@ -661,8 +710,10 @@ error_device: EXPORT_SYMBOL_GPL(fpga_mgr_register); /** - * fpga_mgr_unregister - unregister and free a FPGA manager - * @mgr: fpga manager struct + * fpga_mgr_unregister - unregister a FPGA manager + * @mgr: fpga manager struct + * + * This function is intended for use in a FPGA manager driver's remove function. */ void fpga_mgr_unregister(struct fpga_manager *mgr) { @@ -681,9 +732,6 @@ EXPORT_SYMBOL_GPL(fpga_mgr_unregister); static void fpga_mgr_dev_release(struct device *dev) { - struct fpga_manager *mgr = to_fpga_manager(dev); - - fpga_mgr_free(mgr); } static int __init fpga_mgr_class_init(void) diff --git a/drivers/fpga/fpga-region.c b/drivers/fpga/fpga-region.c index 0d65220d5ec5..bde5a9d460c5 100644 --- a/drivers/fpga/fpga-region.c +++ b/drivers/fpga/fpga-region.c @@ -185,6 +185,10 @@ ATTRIBUTE_GROUPS(fpga_region); * @mgr: manager that programs this region * @get_bridges: optional function to get bridges to a list * + * The caller of this function is responsible for freeing the resulting region + * struct with fpga_region_free(). Using devm_fpga_region_create() instead is + * recommended. + * * Return: struct fpga_region or NULL */ struct fpga_region @@ -230,8 +234,8 @@ err_free: EXPORT_SYMBOL_GPL(fpga_region_create); /** - * fpga_region_free - free a struct fpga_region - * @region: FPGA region created by fpga_region_create + * fpga_region_free - free a FPGA region created by fpga_region_create() + * @region: FPGA region */ void fpga_region_free(struct fpga_region *region) { @@ -240,21 +244,69 @@ void fpga_region_free(struct fpga_region *region) } EXPORT_SYMBOL_GPL(fpga_region_free); +static void devm_fpga_region_release(struct device *dev, void *res) +{ + struct fpga_region *region = *(struct fpga_region **)res; + + fpga_region_free(region); +} + +/** + * devm_fpga_region_create - create and initialize a managed FPGA region struct + * @dev: device parent + * @mgr: manager that programs this region + * @get_bridges: optional function to get bridges to a list + * + * This function is intended for use in a FPGA region driver's probe function. + * After the region driver creates the region struct with + * devm_fpga_region_create(), it should register it with fpga_region_register(). + * The region driver's remove function should call fpga_region_unregister(). + * The region struct allocated with this function will be freed automatically on + * driver detach. This includes the case of a probe function returning error + * before calling fpga_region_register(), the struct will still get cleaned up. + * + * Return: struct fpga_region or NULL + */ +struct fpga_region +*devm_fpga_region_create(struct device *dev, + struct fpga_manager *mgr, + int (*get_bridges)(struct fpga_region *)) +{ + struct fpga_region **ptr, *region; + + ptr = devres_alloc(devm_fpga_region_release, sizeof(*ptr), GFP_KERNEL); + if (!ptr) + return NULL; + + region = fpga_region_create(dev, mgr, get_bridges); + if (!region) { + devres_free(ptr); + } else { + *ptr = region; + devres_add(dev, ptr); + } + + return region; +} +EXPORT_SYMBOL_GPL(devm_fpga_region_create); + /** * fpga_region_register - register a FPGA region - * @region: FPGA region created by fpga_region_create + * @region: FPGA region + * * Return: 0 or -errno */ int fpga_region_register(struct fpga_region *region) { return device_add(®ion->dev); - } EXPORT_SYMBOL_GPL(fpga_region_register); /** - * fpga_region_unregister - unregister and free a FPGA region + * fpga_region_unregister - unregister a FPGA region * @region: FPGA region + * + * This function is intended for use in a FPGA region driver's remove function. */ void fpga_region_unregister(struct fpga_region *region) { @@ -264,9 +316,6 @@ EXPORT_SYMBOL_GPL(fpga_region_unregister); static void fpga_region_dev_release(struct device *dev) { - struct fpga_region *region = to_fpga_region(dev); - - fpga_region_free(region); } /** diff --git a/drivers/fpga/ice40-spi.c b/drivers/fpga/ice40-spi.c index 5981c7ee7a7d..6154661b8f76 100644 --- a/drivers/fpga/ice40-spi.c +++ b/drivers/fpga/ice40-spi.c @@ -175,18 +175,14 @@ static int ice40_fpga_probe(struct spi_device *spi) return ret; } - mgr = fpga_mgr_create(dev, "Lattice iCE40 FPGA Manager", - &ice40_fpga_ops, priv); + mgr = devm_fpga_mgr_create(dev, "Lattice iCE40 FPGA Manager", + &ice40_fpga_ops, priv); if (!mgr) return -ENOMEM; spi_set_drvdata(spi, mgr); - ret = fpga_mgr_register(mgr); - if (ret) - fpga_mgr_free(mgr); - - return ret; + return fpga_mgr_register(mgr); } static int ice40_fpga_remove(struct spi_device *spi) diff --git a/drivers/fpga/machxo2-spi.c b/drivers/fpga/machxo2-spi.c index a582e0000c97..4d8a87641587 100644 --- a/drivers/fpga/machxo2-spi.c +++ b/drivers/fpga/machxo2-spi.c @@ -356,25 +356,20 @@ static int machxo2_spi_probe(struct spi_device *spi) { struct device *dev = &spi->dev; struct fpga_manager *mgr; - int ret; if (spi->max_speed_hz > MACHXO2_MAX_SPEED) { dev_err(dev, "Speed is too high\n"); return -EINVAL; } - mgr = fpga_mgr_create(dev, "Lattice MachXO2 SPI FPGA Manager", - &machxo2_ops, spi); + mgr = devm_fpga_mgr_create(dev, "Lattice MachXO2 SPI FPGA Manager", + &machxo2_ops, spi); if (!mgr) return -ENOMEM; spi_set_drvdata(spi, mgr); - ret = fpga_mgr_register(mgr); - if (ret) - fpga_mgr_free(mgr); - - return ret; + return fpga_mgr_register(mgr); } static int machxo2_spi_remove(struct spi_device *spi) diff --git a/drivers/fpga/of-fpga-region.c b/drivers/fpga/of-fpga-region.c index 052a1342ab7e..122286fd255a 100644 --- a/drivers/fpga/of-fpga-region.c +++ b/drivers/fpga/of-fpga-region.c @@ -410,7 +410,7 @@ static int of_fpga_region_probe(struct platform_device *pdev) if (IS_ERR(mgr)) return -EPROBE_DEFER; - region = fpga_region_create(dev, mgr, of_fpga_region_get_bridges); + region = devm_fpga_region_create(dev, mgr, of_fpga_region_get_bridges); if (!region) { ret = -ENOMEM; goto eprobe_mgr_put; @@ -418,7 +418,7 @@ static int of_fpga_region_probe(struct platform_device *pdev) ret = fpga_region_register(region); if (ret) - goto eprobe_free; + goto eprobe_mgr_put; of_platform_populate(np, fpga_region_of_match, NULL, ®ion->dev); dev_set_drvdata(dev, region); @@ -427,8 +427,6 @@ static int of_fpga_region_probe(struct platform_device *pdev) return 0; -eprobe_free: - fpga_region_free(region); eprobe_mgr_put: fpga_mgr_put(mgr); return ret; diff --git a/drivers/fpga/socfpga-a10.c b/drivers/fpga/socfpga-a10.c index be30c48eb6e4..573d88bdf730 100644 --- a/drivers/fpga/socfpga-a10.c +++ b/drivers/fpga/socfpga-a10.c @@ -508,8 +508,8 @@ static int socfpga_a10_fpga_probe(struct platform_device *pdev) return -EBUSY; } - mgr = fpga_mgr_create(dev, "SoCFPGA Arria10 FPGA Manager", - &socfpga_a10_fpga_mgr_ops, priv); + mgr = devm_fpga_mgr_create(dev, "SoCFPGA Arria10 FPGA Manager", + &socfpga_a10_fpga_mgr_ops, priv); if (!mgr) return -ENOMEM; @@ -517,7 +517,6 @@ static int socfpga_a10_fpga_probe(struct platform_device *pdev) ret = fpga_mgr_register(mgr); if (ret) { - fpga_mgr_free(mgr); clk_disable_unprepare(priv->clk); return ret; } diff --git a/drivers/fpga/socfpga.c b/drivers/fpga/socfpga.c index 959d71f26896..4a8a2fcd4e6c 100644 --- a/drivers/fpga/socfpga.c +++ b/drivers/fpga/socfpga.c @@ -571,18 +571,14 @@ static int socfpga_fpga_probe(struct platform_device *pdev) if (ret) return ret; - mgr = fpga_mgr_create(dev, "Altera SOCFPGA FPGA Manager", - &socfpga_fpga_ops, priv); + mgr = devm_fpga_mgr_create(dev, "Altera SOCFPGA FPGA Manager", + &socfpga_fpga_ops, priv); if (!mgr) return -ENOMEM; platform_set_drvdata(pdev, mgr); - ret = fpga_mgr_register(mgr); - if (ret) - fpga_mgr_free(mgr); - - return ret; + return fpga_mgr_register(mgr); } static int socfpga_fpga_remove(struct platform_device *pdev) diff --git a/drivers/fpga/ts73xx-fpga.c b/drivers/fpga/ts73xx-fpga.c index 08efd1895b1b..dc22a5842609 100644 --- a/drivers/fpga/ts73xx-fpga.c +++ b/drivers/fpga/ts73xx-fpga.c @@ -118,7 +118,6 @@ static int ts73xx_fpga_probe(struct platform_device *pdev) struct ts73xx_fpga_priv *priv; struct fpga_manager *mgr; struct resource *res; - int ret; priv = devm_kzalloc(kdev, sizeof(*priv), GFP_KERNEL); if (!priv) @@ -133,18 +132,14 @@ static int ts73xx_fpga_probe(struct platform_device *pdev) return PTR_ERR(priv->io_base); } - mgr = fpga_mgr_create(kdev, "TS-73xx FPGA Manager", - &ts73xx_fpga_ops, priv); + mgr = devm_fpga_mgr_create(kdev, "TS-73xx FPGA Manager", + &ts73xx_fpga_ops, priv); if (!mgr) return -ENOMEM; platform_set_drvdata(pdev, mgr); - ret = fpga_mgr_register(mgr); - if (ret) - fpga_mgr_free(mgr); - - return ret; + return fpga_mgr_register(mgr); } static int ts73xx_fpga_remove(struct platform_device *pdev) diff --git a/drivers/fpga/xilinx-pr-decoupler.c b/drivers/fpga/xilinx-pr-decoupler.c index 07ba1539e82c..641036135207 100644 --- a/drivers/fpga/xilinx-pr-decoupler.c +++ b/drivers/fpga/xilinx-pr-decoupler.c @@ -121,8 +121,8 @@ static int xlnx_pr_decoupler_probe(struct platform_device *pdev) clk_disable(priv->clk); - br = fpga_bridge_create(&pdev->dev, "Xilinx PR Decoupler", - &xlnx_pr_decoupler_br_ops, priv); + br = devm_fpga_bridge_create(&pdev->dev, "Xilinx PR Decoupler", + &xlnx_pr_decoupler_br_ops, priv); if (!br) { err = -ENOMEM; goto err_clk; diff --git a/drivers/fpga/xilinx-spi.c b/drivers/fpga/xilinx-spi.c index 8d1945966533..469486be20c4 100644 --- a/drivers/fpga/xilinx-spi.c +++ b/drivers/fpga/xilinx-spi.c @@ -144,7 +144,6 @@ static int xilinx_spi_probe(struct spi_device *spi) { struct xilinx_spi_conf *conf; struct fpga_manager *mgr; - int ret; conf = devm_kzalloc(&spi->dev, sizeof(*conf), GFP_KERNEL); if (!conf) @@ -167,18 +166,15 @@ static int xilinx_spi_probe(struct spi_device *spi) return PTR_ERR(conf->done); } - mgr = fpga_mgr_create(&spi->dev, "Xilinx Slave Serial FPGA Manager", - &xilinx_spi_ops, conf); + mgr = devm_fpga_mgr_create(&spi->dev, + "Xilinx Slave Serial FPGA Manager", + &xilinx_spi_ops, conf); if (!mgr) return -ENOMEM; spi_set_drvdata(spi, mgr); - ret = fpga_mgr_register(mgr); - if (ret) - fpga_mgr_free(mgr); - - return ret; + return fpga_mgr_register(mgr); } static int xilinx_spi_remove(struct spi_device *spi) diff --git a/drivers/fpga/zynq-fpga.c b/drivers/fpga/zynq-fpga.c index 3110e00121ca..bb82efeebb9d 100644 --- a/drivers/fpga/zynq-fpga.c +++ b/drivers/fpga/zynq-fpga.c @@ -614,8 +614,8 @@ static int zynq_fpga_probe(struct platform_device *pdev) clk_disable(priv->clk); - mgr = fpga_mgr_create(dev, "Xilinx Zynq FPGA Manager", - &zynq_fpga_ops, priv); + mgr = devm_fpga_mgr_create(dev, "Xilinx Zynq FPGA Manager", + &zynq_fpga_ops, priv); if (!mgr) return -ENOMEM; @@ -624,7 +624,6 @@ static int zynq_fpga_probe(struct platform_device *pdev) err = fpga_mgr_register(mgr); if (err) { dev_err(dev, "unable to register FPGA manager\n"); - fpga_mgr_free(mgr); clk_unprepare(priv->clk); return err; } |