[alsa-devel] [PATCH v2] ASoC: max98373: replace gpio_request with devm_gpio_request

Yong Zhi yong.zhi at intel.com
Mon Nov 4 23:09:59 CET 2019


Use devm_gpio_request() to automatic unroll when fails and avoid
resource leaks at error paths.

Signed-off-by: Yong Zhi <yong.zhi at intel.com>
---
v2 change:
- use devm_gpio_request to avoid the goto statement based on review comments.

 sound/soc/codecs/max98373.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/soc/codecs/max98373.c b/sound/soc/codecs/max98373.c
index eb709d528259..cae1def8902d 100644
--- a/sound/soc/codecs/max98373.c
+++ b/sound/soc/codecs/max98373.c
@@ -960,11 +960,11 @@ static int max98373_i2c_probe(struct i2c_client *i2c,
 
 	/* Power on device */
 	if (gpio_is_valid(max98373->reset_gpio)) {
-		ret = gpio_request(max98373->reset_gpio, "MAX98373_RESET");
+		ret = devm_gpio_request(&i2c->dev, max98373->reset_gpio,
+					"MAX98373_RESET");
 		if (ret) {
 			dev_err(&i2c->dev, "%s: Failed to request gpio %d\n",
 				__func__, max98373->reset_gpio);
-			gpio_free(max98373->reset_gpio);
 			return -EINVAL;
 		}
 		gpio_direction_output(max98373->reset_gpio, 0);
-- 
2.7.4



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