| Message ID | 20230402143025.2524443-10-u.kleine-koenig@pengutronix.de (mailing list archive) |
|---|---|
| State | Changes Requested |
| Delegated to: | Netdev Maintainers |
| Headers | show |
| Series | net: stmmac: 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: 18 this patch: 18 |
| netdev/cc_maintainers | success | CCed 11 of 11 maintainers |
| netdev/build_clang | success | Errors and warnings before: 18 this patch: 18 |
| 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: 18 this patch: 18 |
| netdev/checkpatch | success | total: 0 errors, 0 warnings, 0 checks, 24 lines checked |
| netdev/kdoc | success | Errors and warnings before: 0 this patch: 0 |
| netdev/source_inline | success | Was 0 now: 0 |
On Sun, Apr 02, 2023 at 04:30:23PM +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. > > Trivially convert this driver from always returning zero in the remove > callback to the void returning variant. > > Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Reviewed-by: Simon Horman <simon.horman@corigine.com>
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-stm32.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-stm32.c index 0616b3a04ff3..bdb4de59a672 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-stm32.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-stm32.c @@ -417,7 +417,7 @@ static int stm32_dwmac_probe(struct platform_device *pdev) return ret; } -static int stm32_dwmac_remove(struct platform_device *pdev) +static void stm32_dwmac_remove(struct platform_device *pdev) { struct net_device *ndev = platform_get_drvdata(pdev); struct stmmac_priv *priv = netdev_priv(ndev); @@ -431,8 +431,6 @@ static int stm32_dwmac_remove(struct platform_device *pdev) dev_pm_clear_wake_irq(&pdev->dev); device_init_wakeup(&pdev->dev, false); } - - return 0; } static int stm32mp1_suspend(struct stm32_dwmac *dwmac) @@ -528,7 +526,7 @@ MODULE_DEVICE_TABLE(of, stm32_dwmac_match); static struct platform_driver stm32_dwmac_driver = { .probe = stm32_dwmac_probe, - .remove = stm32_dwmac_remove, + .remove_new = stm32_dwmac_remove, .driver = { .name = "stm32-dwmac", .pm = &stm32_dwmac_pm_ops,
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. Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> --- drivers/net/ethernet/stmicro/stmmac/dwmac-stm32.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-)