This is a note to let you know that I've just added the patch titled
pwm: mtk-disp: Don't check the return code of pwmchip_remove()
to the 4.19-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
pwm-mtk-disp-don-t-check-the-return-code-of-pwmchip_.patch
and it can be found in the queue-4.19 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 393b6c4ff0afa2151e0d77de4182b70a789580f9
Author: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx>
Date: Wed Jul 7 18:28:27 2021 +0200
pwm: mtk-disp: Don't check the return code of pwmchip_remove()
[ Upstream commit 9b7b5736ffd5da6f8f6329ebe5f1829cbcf8afae ]
pwmchip_remove() returns always 0. Don't use the value to make it
possible to eventually change the function to return void. Also the
driver core ignores the return value of mtk_disp_pwm_remove().
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx>
Signed-off-by: Thierry Reding <thierry.reding@xxxxxxxxx>
Stable-dep-of: 36dd7f530ae7 ("pwm: mtk-disp: Disable shadow registers before setting backlight values")
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/pwm/pwm-mtk-disp.c b/drivers/pwm/pwm-mtk-disp.c
index 893940d45f0d0..dd31a00d6326c 100644
--- a/drivers/pwm/pwm-mtk-disp.c
+++ b/drivers/pwm/pwm-mtk-disp.c
@@ -248,13 +248,12 @@ static int mtk_disp_pwm_probe(struct platform_device *pdev)
static int mtk_disp_pwm_remove(struct platform_device *pdev)
{
struct mtk_disp_pwm *mdp = platform_get_drvdata(pdev);
- int ret;
- ret = pwmchip_remove(&mdp->chip);
+ pwmchip_remove(&mdp->chip);
clk_unprepare(mdp->clk_mm);
clk_unprepare(mdp->clk_main);
- return ret;
+ return 0;
}
static const struct mtk_pwm_data mt2701_pwm_data = {
