[PATCH -next] media: staging: rkisp1: cap: fix runtime PM imbalance on error

[Zhang Qilong]

pm_runtime_get_sync will increment pm usage counter even it
failed. Forgetting to pm_runtime_put_noidle will result in
reference imbalance in rkisp1_vb2_start_streaming, so we
should fix it.

Fixes: 56e3b29f9f6b2 ("media: staging: rkisp1: add streaming paths")
Signed-off-by: Zhang Qilong <zhangqilong3 at huawei.com>
---
 drivers/staging/media/rkisp1/rkisp1-capture.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/staging/media/rkisp1/rkisp1-capture.c b/drivers/staging/media/rkisp1/rkisp1-capture.c
index b6f497ce3e95..0c934ca5adaa 100644
--- a/drivers/staging/media/rkisp1/rkisp1-capture.c
+++ b/drivers/staging/media/rkisp1/rkisp1-capture.c
@@ -992,6 +992,7 @@ rkisp1_vb2_start_streaming(struct vb2_queue *queue, unsigned int count)
 
 	ret = pm_runtime_get_sync(cap->rkisp1->dev);
 	if (ret < 0) {
+		pm_runtime_put_noidle(cap->rkisp1->dev);
 		dev_err(cap->rkisp1->dev, "power up failed %d\n", ret);
 		goto err_destroy_dummy;
 	}
-- 
2.17.1