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| author | Cristian Marussi <cristian.marussi@arm.com> | 2024-03-25 21:46:20 +0100 |
|---|---|---|
| committer | Sudeep Holla <sudeep.holla@arm.com> | 2024-03-26 13:06:48 +0100 |
| commit | 3a7d93d1f71b3843a64a1672536d42ff7c77a34d (patch) | |
| tree | be8a61abb50c1dff086ed4a13b8d6264a91c92d5 /drivers | |
| parent | firmware: arm_scmi: Simplify scmi_devm_notifier_unregister (diff) | |
| download | linux-3a7d93d1f71b3843a64a1672536d42ff7c77a34d.tar.xz linux-3a7d93d1f71b3843a64a1672536d42ff7c77a34d.zip | |
firmware: arm_scmi: Use dev_err_probe to bail out
Improve the error logging in the driver probe failure paths.
Also use dev_err_probe which is probe error check and log helper to
prevent logging in case of probe deferral.
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Link: https://lore.kernel.org/r/20240325204620.1437237-6-cristian.marussi@arm.com
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/firmware/arm_scmi/driver.c | 34 |
1 files changed, 26 insertions, 8 deletions
diff --git a/drivers/firmware/arm_scmi/driver.c b/drivers/firmware/arm_scmi/driver.c index 207ed1a52d69..d0091459a276 100644 --- a/drivers/firmware/arm_scmi/driver.c +++ b/drivers/firmware/arm_scmi/driver.c @@ -2540,6 +2540,10 @@ scmi_txrx_setup(struct scmi_info *info, struct device_node *of_node, ret = 0; } + if (ret) + dev_err(info->dev, + "failed to setup channel for protocol:0x%X\n", prot_id); + return ret; } @@ -2809,6 +2813,7 @@ static int scmi_debugfs_raw_mode_setup(struct scmi_info *info) static int scmi_probe(struct platform_device *pdev) { int ret; + char *err_str = "probe failure\n"; struct scmi_handle *handle; const struct scmi_desc *desc; struct scmi_info *info; @@ -2859,27 +2864,37 @@ static int scmi_probe(struct platform_device *pdev) if (desc->ops->link_supplier) { ret = desc->ops->link_supplier(dev); - if (ret) + if (ret) { + err_str = "transport not ready\n"; goto clear_ida; + } } /* Setup all channels described in the DT at first */ ret = scmi_channels_setup(info); - if (ret) + if (ret) { + err_str = "failed to setup channels\n"; goto clear_ida; + } ret = bus_register_notifier(&scmi_bus_type, &info->bus_nb); - if (ret) + if (ret) { + err_str = "failed to register bus notifier\n"; goto clear_txrx_setup; + } ret = blocking_notifier_chain_register(&scmi_requested_devices_nh, &info->dev_req_nb); - if (ret) + if (ret) { + err_str = "failed to register device notifier\n"; goto clear_bus_notifier; + } ret = scmi_xfer_info_init(info); - if (ret) + if (ret) { + err_str = "failed to init xfers pool\n"; goto clear_dev_req_notifier; + } if (scmi_top_dentry) { info->dbg = scmi_debugfs_common_setup(info); @@ -2916,9 +2931,11 @@ static int scmi_probe(struct platform_device *pdev) */ ret = scmi_protocol_acquire(handle, SCMI_PROTOCOL_BASE); if (ret) { - dev_err(dev, "unable to communicate with SCMI\n"); - if (coex) + err_str = "unable to communicate with SCMI\n"; + if (coex) { + dev_err(dev, err_str); return 0; + } goto notification_exit; } @@ -2972,7 +2989,8 @@ clear_txrx_setup: scmi_cleanup_txrx_channels(info); clear_ida: ida_free(&scmi_id, info->id); - return ret; + + return dev_err_probe(dev, ret, err_str); } static void scmi_remove(struct platform_device *pdev) |