From: Alexandre Courbot <acourbot@nvidia.com>
Date: Wed, 25 Jun 2014 09:18:18 +0000 (+0900)
Subject: backlight: pwm-backlight: Use devm_gpiod_get_optional()
X-Git-Tag: firefly_0821_release~176^2~3452^2~2
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=ff9c5422d8ebae60bafedf8608ec54d4d87a6bc0;p=firefly-linux-kernel-4.4.55.git

backlight: pwm-backlight: Use devm_gpiod_get_optional()

Make use of the new devm_gpiod_get_optional() to simplify the probe
code.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---

diff --git a/drivers/video/backlight/pwm_bl.c b/drivers/video/backlight/pwm_bl.c
index c9c8496369b3..d7a3d13e72ec 100644
--- a/drivers/video/backlight/pwm_bl.c
+++ b/drivers/video/backlight/pwm_bl.c
@@ -239,13 +239,10 @@ static int pwm_backlight_probe(struct platform_device *pdev)
 	pb->dev = &pdev->dev;
 	pb->enabled = false;
 
-	pb->enable_gpio = devm_gpiod_get(&pdev->dev, "enable");
+	pb->enable_gpio = devm_gpiod_get_optional(&pdev->dev, "enable");
 	if (IS_ERR(pb->enable_gpio)) {
 		ret = PTR_ERR(pb->enable_gpio);
-		if (ret == -ENOENT)
-			pb->enable_gpio = NULL;
-		else
-			goto err_alloc;
+		goto err_alloc;
 	}
 
 	/*