| Message ID | 20230601082556.2738446-4-u.kleine-koenig@pengutronix.de (mailing list archive) |
|---|---|
| State | Awaiting Upstream |
| Delegated to: | Netdev Maintainers |
| Headers | show |
| Series | Convert to platform remove callback returning void | expand |
| Context | Check | Description |
|---|---|---|
| netdev/series_format | success | Posting correctly formatted |
| netdev/tree_selection | success | Clearly marked for net-next |
| netdev/fixes_present | success | Fixes tag not required for -next series |
| netdev/header_inline | success | No static functions without inline keyword in header files |
| netdev/build_32bit | success | Errors and warnings before: 8 this patch: 8 |
| netdev/cc_maintainers | success | CCed 3 of 3 maintainers |
| netdev/build_clang | success | Errors and warnings before: 10 this patch: 10 |
| netdev/verify_signedoff | success | Signed-off-by tag matches author and committer |
| netdev/deprecated_api | success | None detected |
| netdev/check_selftest | success | No net selftest shell script |
| netdev/verify_fixes | success | No Fixes tag |
| netdev/build_allmodconfig_warn | success | Errors and warnings before: 8 this patch: 8 |
| netdev/checkpatch | success | total: 0 errors, 0 warnings, 0 checks, 50 lines checked |
| netdev/kdoc | success | Errors and warnings before: 0 this patch: 0 |
| netdev/source_inline | success | Was 0 now: 0 |
On Thu, Jun 01, 2023 at 10:25:55AM +0200, Uwe Kleine-König wrote: > The .remove() callback for a platform driver returns an int which makes > many driver authors wrongly assume it's possible to do error handling by > returning an error code. However the value returned is (mostly) ignored > and this typically results in resource leaks. To improve here there is a > quest to make the remove callback return void. In the first step of this > quest all drivers are converted to .remove_new() which already returns > void. > > Both ath10k platform drivers return zero unconditionally in their remove > callback, so they can be trivially converted to use .remove_new(). > > Also fix on of the more offending whitespace issues in the definition > of ath10k_snoc_driver. > > Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Reviewed-by: Simon Horman <simon.horman@corigine.com>
diff --git a/drivers/net/wireless/ath/ath10k/ahb.c b/drivers/net/wireless/ath/ath10k/ahb.c index fffdbad75074..632da4c5e5da 100644 --- a/drivers/net/wireless/ath/ath10k/ahb.c +++ b/drivers/net/wireless/ath/ath10k/ahb.c @@ -820,7 +820,7 @@ static int ath10k_ahb_probe(struct platform_device *pdev) return ret; } -static int ath10k_ahb_remove(struct platform_device *pdev) +static void ath10k_ahb_remove(struct platform_device *pdev) { struct ath10k *ar = platform_get_drvdata(pdev); @@ -834,8 +834,6 @@ static int ath10k_ahb_remove(struct platform_device *pdev) ath10k_ahb_clock_disable(ar); ath10k_ahb_resource_deinit(ar); ath10k_core_destroy(ar); - - return 0; } static struct platform_driver ath10k_ahb_driver = { @@ -844,7 +842,7 @@ static struct platform_driver ath10k_ahb_driver = { .of_match_table = ath10k_ahb_of_match, }, .probe = ath10k_ahb_probe, - .remove = ath10k_ahb_remove, + .remove_new = ath10k_ahb_remove, }; int ath10k_ahb_init(void) diff --git a/drivers/net/wireless/ath/ath10k/snoc.c b/drivers/net/wireless/ath/ath10k/snoc.c index 5128a452c65f..26214c00cd0d 100644 --- a/drivers/net/wireless/ath/ath10k/snoc.c +++ b/drivers/net/wireless/ath/ath10k/snoc.c @@ -1848,7 +1848,7 @@ static int ath10k_snoc_free_resources(struct ath10k *ar) return 0; } -static int ath10k_snoc_remove(struct platform_device *pdev) +static void ath10k_snoc_remove(struct platform_device *pdev) { struct ath10k *ar = platform_get_drvdata(pdev); struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar); @@ -1861,8 +1861,6 @@ static int ath10k_snoc_remove(struct platform_device *pdev) wait_for_completion_timeout(&ar->driver_recovery, 3 * HZ); ath10k_snoc_free_resources(ar); - - return 0; } static void ath10k_snoc_shutdown(struct platform_device *pdev) @@ -1875,8 +1873,8 @@ static void ath10k_snoc_shutdown(struct platform_device *pdev) static struct platform_driver ath10k_snoc_driver = { .probe = ath10k_snoc_probe, - .remove = ath10k_snoc_remove, - .shutdown = ath10k_snoc_shutdown, + .remove_new = ath10k_snoc_remove, + .shutdown = ath10k_snoc_shutdown, .driver = { .name = "ath10k_snoc", .of_match_table = ath10k_snoc_dt_match,
The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is (mostly) ignored and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new() which already returns void. Both ath10k platform drivers return zero unconditionally in their remove callback, so they can be trivially converted to use .remove_new(). Also fix on of the more offending whitespace issues in the definition of ath10k_snoc_driver. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> --- drivers/net/wireless/ath/ath10k/ahb.c | 6 ++---- drivers/net/wireless/ath/ath10k/snoc.c | 8 +++----- 2 files changed, 5 insertions(+), 9 deletions(-)