Messages in this thread Patch in this message | | | From | Uwe Kleine-König <> | Subject | [PATCH v2 14/18] mfd: sm501: Convert to platform remove callback returning void | Date | Thu, 23 Nov 2023 17:56:42 +0100 |
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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 ignored (apart from emitting a warning) 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. Eventually after all drivers are converted, .remove_new() will be renamed to .remove().
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/mfd/sm501.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/drivers/mfd/sm501.c b/drivers/mfd/sm501.c index 28027982cf69..b3592982a83b 100644 --- a/drivers/mfd/sm501.c +++ b/drivers/mfd/sm501.c @@ -1667,7 +1667,7 @@ static void sm501_pci_remove(struct pci_dev *dev) pci_disable_device(dev); } -static int sm501_plat_remove(struct platform_device *dev) +static void sm501_plat_remove(struct platform_device *dev) { struct sm501_devdata *sm = platform_get_drvdata(dev); @@ -1675,8 +1675,6 @@ static int sm501_plat_remove(struct platform_device *dev) iounmap(sm->regs); release_mem_region(sm->io_res->start, 0x100); - - return 0; } static const struct pci_device_id sm501_pci_tbl[] = { @@ -1707,7 +1705,7 @@ static struct platform_driver sm501_plat_driver = { .of_match_table = of_sm501_match_tbl, }, .probe = sm501_plat_probe, - .remove = sm501_plat_remove, + .remove_new = sm501_plat_remove, .suspend = pm_sleep_ptr(sm501_plat_suspend), .resume = pm_sleep_ptr(sm501_plat_resume), }; -- 2.42.0
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