Thread (3 messages) 3 messages, 3 authors, 2020-06-18

[PATCH] ASoC: rockchip: Fix a reference count leak.

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STALE2301d LANDED

From: <hidden>
Date: 2020-06-13 20:52:12
Also in: alsa-devel, linux-rockchip, lkml
Subsystem: arm/rockchip soc support, sound, sound - soc layer / dynamic audio power management (asoc), the rest · Maintainers: Heiko Stuebner, Jaroslav Kysela, Takashi Iwai, Liam Girdwood, Mark Brown, Linus Torvalds

Landed in mainline as f141a422159a on 2020-06-18.

From: Qiushi Wu <redacted>

Calling pm_runtime_get_sync increments the counter even in case of
failure, causing incorrect ref count if pm_runtime_put is not called in
error handling paths. Call pm_runtime_put if pm_runtime_get_sync fails.

Fixes: fc05a5b22253 ("ASoC: rockchip: add support for pdm controller")
Signed-off-by: Qiushi Wu <redacted>
---
 sound/soc/rockchip/rockchip_pdm.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/sound/soc/rockchip/rockchip_pdm.c b/sound/soc/rockchip/rockchip_pdm.c
index 7cd42fcfcf38..1707414cfa92 100644
--- a/sound/soc/rockchip/rockchip_pdm.c
+++ b/sound/soc/rockchip/rockchip_pdm.c
@@ -590,8 +590,10 @@ static int rockchip_pdm_resume(struct device *dev)
 	int ret;
 
 	ret = pm_runtime_get_sync(dev);
-	if (ret < 0)
+	if (ret < 0) {
+		pm_runtime_put(dev);
 		return ret;
+	}
 
 	ret = regcache_sync(pdm->regmap);
 
-- 
2.17.1


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