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One simple fix to correctly handle -EPROBE_DEFER 

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Merge tag 'backlight-fixes-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight

Pull backlight fix from Lee Jones:
 "One simple fix to correctly handle -EPROBE_DEFER"

* tag 'backlight-fixes-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight:
  backlight: pwm: Handle EPROBE_DEFER while requesting the PWM
wifi-calibration
Linus Torvalds 2015-05-27 08:56:21 -07:00
parent c09b5cbd0d 68feaca0b1
commit 30a7266f30
1 changed files with 4 additions and 0 deletions
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4
drivers/video/backlight/pwm_bl.c
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@ -274,6 +274,10 @@ static int pwm_backlight_probe(struct platform_device *pdev)
pb->pwm = devm_pwm_get(&pdev->dev, NULL);
if (IS_ERR(pb->pwm)) {
ret = PTR_ERR(pb->pwm);
if (ret == -EPROBE_DEFER)
goto err_alloc;
dev_err(&pdev->dev, "unable to request PWM, trying legacy API\n");
pb->legacy = true;
pb->pwm = pwm_request(data->pwm_id, "pwm-backlight");