This is a note to let you know that I've just added the patch titled
media: amphion: release m2m ctx when releasing vpu instance
to the 6.0-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
media-amphion-release-m2m-ctx-when-releasing-vpu-ins.patch
and it can be found in the queue-6.0 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 3276f18d9e7a65d102e449f88014408eb8763a09
Author: Ming Qian <ming.qian@xxxxxxx>
Date: Mon Aug 29 07:33:16 2022 +0200
media: amphion: release m2m ctx when releasing vpu instance
[ Upstream commit d91d7bc85062309aae6d8064563ddf17947cb6bc ]
release m2m ctx in the callback function that
release the vpu instance, then there is no need
to add lock around releasing m2m ctx.
Fixes: 3cd084519c6f ("media: amphion: add vpu v4l2 m2m support")
Signed-off-by: Ming Qian <ming.qian@xxxxxxx>
Reviewed-by: Tommaso Merciai <tommaso.merciai@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xxxxxxxxx>
Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/media/platform/amphion/vpu_v4l2.c b/drivers/media/platform/amphion/vpu_v4l2.c
index 8a3eed957ae6..b779e0ba916c 100644
--- a/drivers/media/platform/amphion/vpu_v4l2.c
+++ b/drivers/media/platform/amphion/vpu_v4l2.c
@@ -603,6 +603,10 @@ static int vpu_v4l2_release(struct vpu_inst *inst)
inst->workqueue = NULL;
}
+ if (inst->fh.m2m_ctx) {
+ v4l2_m2m_ctx_release(inst->fh.m2m_ctx);
+ inst->fh.m2m_ctx = NULL;
+ }
v4l2_ctrl_handler_free(&inst->ctrl_handler);
mutex_destroy(&inst->lock);
v4l2_fh_del(&inst->fh);
@@ -685,13 +689,6 @@ int vpu_v4l2_close(struct file *file)
vpu_trace(vpu->dev, "tgid = %d, pid = %d, inst = %p\n", inst->tgid, inst->pid, inst);
- vpu_inst_lock(inst);
- if (inst->fh.m2m_ctx) {
- v4l2_m2m_ctx_release(inst->fh.m2m_ctx);
- inst->fh.m2m_ctx = NULL;
- }
- vpu_inst_unlock(inst);
-
call_void_vop(inst, release);
vpu_inst_unregister(inst);
vpu_inst_put(inst);
