[PATCH AUTOSEL 5.10 47/93] ASoC: img: Fix PM reference leak in img_i2s_in_probe()

Sasha Levin sashal at kernel.org
Sat Jul 10 04:23:41 CEST 2021


From: Yufen Yu <yuyufen at huawei.com>

[ Upstream commit 81aad47278539f02de808bcc8251fed0ad3d6f55 ]

pm_runtime_get_sync will increment pm usage counter even it failed.
Forgetting to putting operation will result in reference leak here.
Fix it by replacing it with pm_runtime_resume_and_get to keep usage
counter balanced.

Reported-by: Hulk Robot <hulkci at huawei.com>
Signed-off-by: Yufen Yu <yuyufen at huawei.com>
Link: https://lore.kernel.org/r/20210524093521.612176-1-yuyufen@huawei.com
Signed-off-by: Mark Brown <broonie at kernel.org>
Signed-off-by: Sasha Levin <sashal at kernel.org>
---
 sound/soc/img/img-i2s-in.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/img/img-i2s-in.c b/sound/soc/img/img-i2s-in.c
index 0843235d73c9..fd3432a1d6ab 100644
--- a/sound/soc/img/img-i2s-in.c
+++ b/sound/soc/img/img-i2s-in.c
@@ -464,7 +464,7 @@ static int img_i2s_in_probe(struct platform_device *pdev)
 		if (ret)
 			goto err_pm_disable;
 	}
-	ret = pm_runtime_get_sync(&pdev->dev);
+	ret = pm_runtime_resume_and_get(&pdev->dev);
 	if (ret < 0)
 		goto err_suspend;
 
-- 
2.30.2



More information about the Alsa-devel mailing list