From: Dillon Min dillon.minfei@gmail.com
stable inclusion from linux-4.19.198 commit 4980ea4797249b179a2732170e58f579d08fa5b2
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[ Upstream commit 5d11e6aad1811ea293ee2996cec9124f7fccb661 ]
The m2m_ctx resources was allocated by v4l2_m2m_ctx_init() in g2d_open() should be freed from g2d_release() when it's not used.
Fix it
Fixes: 918847341af0 ("[media] v4l: add G2D driver for s5p device family") Signed-off-by: Dillon Min dillon.minfei@gmail.com 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 Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- drivers/media/platform/s5p-g2d/g2d.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/media/platform/s5p-g2d/g2d.c b/drivers/media/platform/s5p-g2d/g2d.c index 1f58574d0b965..4cf5b559420f6 100644 --- a/drivers/media/platform/s5p-g2d/g2d.c +++ b/drivers/media/platform/s5p-g2d/g2d.c @@ -285,6 +285,9 @@ static int g2d_release(struct file *file) struct g2d_dev *dev = video_drvdata(file); struct g2d_ctx *ctx = fh2ctx(file->private_data);
+ mutex_lock(&dev->mutex); + v4l2_m2m_ctx_release(ctx->fh.m2m_ctx); + mutex_unlock(&dev->mutex); v4l2_ctrl_handler_free(&ctx->ctrl_handler); v4l2_fh_del(&ctx->fh); v4l2_fh_exit(&ctx->fh);