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authorUwe Kleine-König <u.kleine-koenig@pengutronix.de>2023-03-08 08:39:35 +0100
committerLee Jones <lee@kernel.org>2023-03-16 15:08:35 +0000
commitf6672d7f0cff6ee8bd09851545b60e41099197ae (patch)
treed901fb174f127fe2f32f995e554a31a5aa80663f
parent6879039167ff4b6805760f1c5935e93c92dc6aa4 (diff)
backlight: cr_bllcd: Convert to platform remove callback returning void
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: Daniel Thompson <daniel.thompson@linaro.org> Signed-off-by: Lee Jones <lee@kernel.org> Link: https://lore.kernel.org/r/20230308073945.2336302-4-u.kleine-koenig@pengutronix.de
-rw-r--r--drivers/video/backlight/cr_bllcd.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/video/backlight/cr_bllcd.c b/drivers/video/backlight/cr_bllcd.c
index 4ad0a72531fe..781aeecc451d 100644
--- a/drivers/video/backlight/cr_bllcd.c
+++ b/drivers/video/backlight/cr_bllcd.c
@@ -210,7 +210,7 @@ static int cr_backlight_probe(struct platform_device *pdev)
return 0;
}
-static int cr_backlight_remove(struct platform_device *pdev)
+static void cr_backlight_remove(struct platform_device *pdev)
{
struct cr_panel *crp = platform_get_drvdata(pdev);
@@ -220,13 +220,11 @@ static int cr_backlight_remove(struct platform_device *pdev)
cr_backlight_set_intensity(crp->cr_backlight_device);
cr_lcd_set_power(crp->cr_lcd_device, FB_BLANK_POWERDOWN);
pci_dev_put(lpc_dev);
-
- return 0;
}
static struct platform_driver cr_backlight_driver = {
.probe = cr_backlight_probe,
- .remove = cr_backlight_remove,
+ .remove_new = cr_backlight_remove,
.driver = {
.name = "cr_backlight",
},