leds: leds-pwm: return proper error if pwm_request failed
authorAxel Lin <axel.lin@gmail.com>
Tue, 25 Jan 2011 23:07:14 +0000 (15:07 -0800)
committerLinus Torvalds <torvalds@linux-foundation.org>
Wed, 26 Jan 2011 00:49:58 +0000 (10:49 +1000)
Return PTR_ERR(led_dat->pwm) instead of 0 if pwm_request failed

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Luotao Fu <l.fu@pengutronix.de>
Cc: Reviewed-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
drivers/leds/leds-pwm.c

index da3fa8d..666daf7 100644 (file)
@@ -69,6 +69,7 @@ static int led_pwm_probe(struct platform_device *pdev)
                led_dat->pwm = pwm_request(cur_led->pwm_id,
                                cur_led->name);
                if (IS_ERR(led_dat->pwm)) {
+                       ret = PTR_ERR(led_dat->pwm);
                        dev_err(&pdev->dev, "unable to request PWM %d\n",
                                        cur_led->pwm_id);
                        goto err;