| From | Greg Kroah-Hartman <> | Subject | [PATCH 5.4 091/408] media: rcar-vin: Fix a reference count leak. | Date | Tue, 27 Oct 2020 14:50:29 +0100 |
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From: Qiushi Wu <wu000273@umn.edu>
[ Upstream commit aaffa0126a111d65f4028c503c76192d4cc93277 ]
pm_runtime_get_sync() increments the runtime PM usage counter even when it returns an error code. Thus call pm_runtime_put_noidle() if pm_runtime_get_sync() fails.
Fixes: 90dedce9bc54 ("media: rcar-vin: add function to manipulate Gen3 chsel value") Signed-off-by: Qiushi Wu <wu000273@umn.edu> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/media/platform/rcar-vin/rcar-dma.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/media/platform/rcar-vin/rcar-dma.c b/drivers/media/platform/rcar-vin/rcar-dma.c index 3cb29b2e0b2b1..e5f6360801082 100644 --- a/drivers/media/platform/rcar-vin/rcar-dma.c +++ b/drivers/media/platform/rcar-vin/rcar-dma.c @@ -1334,8 +1334,10 @@ int rvin_set_channel_routing(struct rvin_dev *vin, u8 chsel) int ret; ret = pm_runtime_get_sync(vin->dev); - if (ret < 0) + if (ret < 0) { + pm_runtime_put_noidle(vin->dev); return ret; + } /* Make register writes take effect immediately. */ vnmc = rvin_read(vin, VNMC_REG); -- 2.25.1
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