pwm: mtk-disp: Don't check the return code of pwmchip_remove()

Uwe Kleine-König · thierryreding · commit 9b7b5736ffd5 · 2021-09-02T21:38:52.000+02:00
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 &lt;u.kleine-koenig@pengutronix.de&gt;
Signed-off-by: Thierry Reding &lt;thierry.reding@gmail.com&gt;
diff --git a/drivers/pwm/pwm-mtk-disp.c b/drivers/pwm/pwm-mtk-disp.c
@@ -237,13 +237,12 @@ 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 = {

Original file line number	Diff line number	Diff line change
`@@ -237,13 +237,12 @@ static int mtk_disp_pwm_probe(struct platform_device *pdev)`
`237`	`237`	`static int mtk_disp_pwm_remove(struct platform_device *pdev)`
`238`	`238`	`{`
`239`	`239`	`struct mtk_disp_pwm *mdp = platform_get_drvdata(pdev);`
`240`		`- int ret;`
`241`	`240`
`242`		`- ret = pwmchip_remove(&mdp->chip);`
	`241`	`+ pwmchip_remove(&mdp->chip);`
`243`	`242`	`clk_unprepare(mdp->clk_mm);`
`244`	`243`	`clk_unprepare(mdp->clk_main);`
`245`	`244`
`246`		`- return ret;`
	`245`	`+ return 0;`
`247`	`246`	`}`
`248`	`247`
`249`	`248`	`static const struct mtk_pwm_data mt2701_pwm_data = {`