diff options
| -rw-r--r-- | drivers/scsi/ahci.c | 11 | ||||
| -rw-r--r-- | drivers/scsi/libata-core.c | 9 | ||||
| -rw-r--r-- | drivers/scsi/sata_mv.c | 31 | ||||
| -rw-r--r-- | drivers/scsi/sata_sil24.c | 33 | ||||
| -rw-r--r-- | include/linux/libata.h | 13 |
5 files changed, 71 insertions, 26 deletions
diff --git a/drivers/scsi/ahci.c b/drivers/scsi/ahci.c index 8420204c2eaa..4612312c0c2d 100644 --- a/drivers/scsi/ahci.c +++ b/drivers/scsi/ahci.c @@ -307,21 +307,22 @@ static int ahci_port_start(struct ata_port *ap) void __iomem *port_mmio = ahci_port_base(mmio, ap->port_no); void *mem; dma_addr_t mem_dma; + int rc; pp = kmalloc(sizeof(*pp), GFP_KERNEL); if (!pp) return -ENOMEM; memset(pp, 0, sizeof(*pp)); - ap->pad = dma_alloc_coherent(dev, ATA_DMA_PAD_BUF_SZ, &ap->pad_dma, GFP_KERNEL); - if (!ap->pad) { + rc = ata_pad_alloc(ap, dev); + if (rc) { kfree(pp); - return -ENOMEM; + return rc; } mem = dma_alloc_coherent(dev, AHCI_PORT_PRIV_DMA_SZ, &mem_dma, GFP_KERNEL); if (!mem) { - dma_free_coherent(dev, ATA_DMA_PAD_BUF_SZ, ap->pad, ap->pad_dma); + ata_pad_free(ap, dev); kfree(pp); return -ENOMEM; } @@ -397,7 +398,7 @@ static void ahci_port_stop(struct ata_port *ap) ap->private_data = NULL; dma_free_coherent(dev, AHCI_PORT_PRIV_DMA_SZ, pp->cmd_slot, pp->cmd_slot_dma); - dma_free_coherent(dev, ATA_DMA_PAD_BUF_SZ, ap->pad, ap->pad_dma); + ata_pad_free(ap, dev); kfree(pp); } diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c index ae2475e4291c..e1346cddd37f 100644 --- a/drivers/scsi/libata-core.c +++ b/drivers/scsi/libata-core.c @@ -4091,15 +4091,16 @@ err_out: int ata_port_start (struct ata_port *ap) { struct device *dev = ap->host_set->dev; + int rc; ap->prd = dma_alloc_coherent(dev, ATA_PRD_TBL_SZ, &ap->prd_dma, GFP_KERNEL); if (!ap->prd) return -ENOMEM; - ap->pad = dma_alloc_coherent(dev, ATA_DMA_PAD_BUF_SZ, &ap->pad_dma, GFP_KERNEL); - if (!ap->pad) { + rc = ata_pad_alloc(ap, dev); + if (rc) { dma_free_coherent(dev, ATA_PRD_TBL_SZ, ap->prd, ap->prd_dma); - return -ENOMEM; + return rc; } DPRINTK("prd alloc, virt %p, dma %llx\n", ap->prd, (unsigned long long) ap->prd_dma); @@ -4125,7 +4126,7 @@ void ata_port_stop (struct ata_port *ap) struct device *dev = ap->host_set->dev; dma_free_coherent(dev, ATA_PRD_TBL_SZ, ap->prd, ap->prd_dma); - dma_free_coherent(dev, ATA_DMA_PAD_BUF_SZ, ap->pad, ap->pad_dma); + ata_pad_free(ap, dev); } void ata_host_stop (struct ata_host_set *host_set) diff --git a/drivers/scsi/sata_mv.c b/drivers/scsi/sata_mv.c index 64af334e71f4..0f469e3dabe2 100644 --- a/drivers/scsi/sata_mv.c +++ b/drivers/scsi/sata_mv.c @@ -670,6 +670,11 @@ static void mv_host_stop(struct ata_host_set *host_set) ata_host_stop(host_set); } +static inline void mv_priv_free(struct mv_port_priv *pp, struct device *dev) +{ + dma_free_coherent(dev, MV_PORT_PRIV_DMA_SZ, pp->crpb, pp->crpb_dma); +} + /** * mv_port_start - Port specific init/start routine. * @ap: ATA channel to manipulate @@ -687,21 +692,23 @@ static int mv_port_start(struct ata_port *ap) void __iomem *port_mmio = mv_ap_base(ap); void *mem; dma_addr_t mem_dma; + int rc = -ENOMEM; pp = kmalloc(sizeof(*pp), GFP_KERNEL); - if (!pp) { - return -ENOMEM; - } + if (!pp) + goto err_out; memset(pp, 0, sizeof(*pp)); mem = dma_alloc_coherent(dev, MV_PORT_PRIV_DMA_SZ, &mem_dma, GFP_KERNEL); - if (!mem) { - kfree(pp); - return -ENOMEM; - } + if (!mem) + goto err_out_pp; memset(mem, 0, MV_PORT_PRIV_DMA_SZ); + rc = ata_pad_alloc(ap, dev); + if (rc) + goto err_out_priv; + /* First item in chunk of DMA memory: * 32-slot command request table (CRQB), 32 bytes each in size */ @@ -746,6 +753,13 @@ static int mv_port_start(struct ata_port *ap) */ ap->private_data = pp; return 0; + +err_out_priv: + mv_priv_free(pp, dev); +err_out_pp: + kfree(pp); +err_out: + return rc; } /** @@ -768,7 +782,8 @@ static void mv_port_stop(struct ata_port *ap) spin_unlock_irqrestore(&ap->host_set->lock, flags); ap->private_data = NULL; - dma_free_coherent(dev, MV_PORT_PRIV_DMA_SZ, pp->crpb, pp->crpb_dma); + ata_pad_free(ap, dev); + mv_priv_free(pp, dev); kfree(pp); } diff --git a/drivers/scsi/sata_sil24.c b/drivers/scsi/sata_sil24.c index 211ec7eebc9c..e6c8e89c226f 100644 --- a/drivers/scsi/sata_sil24.c +++ b/drivers/scsi/sata_sil24.c @@ -635,6 +635,13 @@ static irqreturn_t sil24_interrupt(int irq, void *dev_instance, struct pt_regs * return IRQ_RETVAL(handled); } +static inline void sil24_cblk_free(struct sil24_port_priv *pp, struct device *dev) +{ + const size_t cb_size = sizeof(*pp->cmd_block); + + dma_free_coherent(dev, cb_size, pp->cmd_block, pp->cmd_block_dma); +} + static int sil24_port_start(struct ata_port *ap) { struct device *dev = ap->host_set->dev; @@ -642,36 +649,44 @@ static int sil24_port_start(struct ata_port *ap) struct sil24_cmd_block *cb; size_t cb_size = sizeof(*cb); dma_addr_t cb_dma; + int rc = -ENOMEM; - pp = kmalloc(sizeof(*pp), GFP_KERNEL); + pp = kzalloc(sizeof(*pp), GFP_KERNEL); if (!pp) - return -ENOMEM; - memset(pp, 0, sizeof(*pp)); + goto err_out; pp->tf.command = ATA_DRDY; cb = dma_alloc_coherent(dev, cb_size, &cb_dma, GFP_KERNEL); - if (!cb) { - kfree(pp); - return -ENOMEM; - } + if (!cb) + goto err_out_pp; memset(cb, 0, cb_size); + rc = ata_pad_alloc(ap, dev); + if (rc) + goto err_out_pad; + pp->cmd_block = cb; pp->cmd_block_dma = cb_dma; ap->private_data = pp; return 0; + +err_out_pad: + sil24_cblk_free(pp, dev); +err_out_pp: + kfree(pp); +err_out: + return rc; } static void sil24_port_stop(struct ata_port *ap) { struct device *dev = ap->host_set->dev; struct sil24_port_priv *pp = ap->private_data; - size_t cb_size = sizeof(*pp->cmd_block); - dma_free_coherent(dev, cb_size, pp->cmd_block, pp->cmd_block_dma); + sil24_cblk_free(pp, dev); kfree(pp); } diff --git a/include/linux/libata.h b/include/linux/libata.h index 6225b78fa65b..dcd17e7458ab 100644 --- a/include/linux/libata.h +++ b/include/linux/libata.h @@ -777,4 +777,17 @@ static inline unsigned int __ac_err_mask(u8 status) return mask; } +static inline int ata_pad_alloc(struct ata_port *ap, struct device *dev) +{ + ap->pad_dma = 0; + ap->pad = dma_alloc_coherent(dev, ATA_DMA_PAD_BUF_SZ, + &ap->pad_dma, GFP_KERNEL); + return (ap->pad == NULL) ? -ENOMEM : 0; +} + +static inline void ata_pad_free(struct ata_port *ap, struct device *dev) +{ + dma_free_coherent(dev, ATA_DMA_PAD_BUF_SZ, ap->pad, ap->pad_dma); +} + #endif /* __LINUX_LIBATA_H__ */ |