[PATCH -next] media: cedrus: fix reference leak in cedrus_start_streaming

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pm_runtime_get_sync will increment pm usage counter even it
failed. Forgetting to pm_runtime_put_noidle will result in
reference leak in cedrus_start_streaming. We should fix it.

Fixes: d5aecd289babf ("media: cedrus: Implement runtime PM")
Signed-off-by: Zhang Qilong <zhangqilong3@xxxxxxxxxx>
---
 drivers/staging/media/sunxi/cedrus/cedrus_video.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/media/sunxi/cedrus/cedrus_video.c b/drivers/staging/media/sunxi/cedrus/cedrus_video.c
index 667b86dde1ee..911f607d9b09 100644
--- a/drivers/staging/media/sunxi/cedrus/cedrus_video.c
+++ b/drivers/staging/media/sunxi/cedrus/cedrus_video.c
@@ -479,8 +479,10 @@ static int cedrus_start_streaming(struct vb2_queue *vq, unsigned int count)
 
 	if (V4L2_TYPE_IS_OUTPUT(vq->type)) {
 		ret = pm_runtime_get_sync(dev->dev);
-		if (ret < 0)
+		if (ret < 0) {
+			pm_runtime_put_noidle(dev->dev);
 			goto err_cleanup;
+		}
 
 		if (dev->dec_ops[ctx->current_codec]->start) {
 			ret = dev->dec_ops[ctx->current_codec]->start(ctx);
-- 
2.17.1




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