dmaengine: rcar-dmac: Fix PM reference leak in rcar_dmac_probe()
authorZou Wei <zou_wei@huawei.com>
Mon, 31 May 2021 06:36:03 +0000 (14:36 +0800)
committerSasha Levin <sashal@kernel.org>
Wed, 30 Jun 2021 12:47:19 +0000 (08:47 -0400)
commit78fa0f707d73c21621454ffd78cdfa1e2c7003c0
tree7dd854593764c76f0904ee1056b1f73f2f44ccec
parent6a07cf36064afb14849d8e038fcca3538fe94bd4
dmaengine: rcar-dmac: Fix PM reference leak in rcar_dmac_probe()

[ Upstream commit dea8464ddf553803382efb753b6727dbf3931d06 ]

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@huawei.com>
Signed-off-by: Zou Wei <zou_wei@huawei.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/1622442963-54095-1-git-send-email-zou_wei@huawei.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/dma/sh/rcar-dmac.c