Patch "media: bdisp: Add missing check for create_workqueue" has been added to the 6.2-stable tree

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This is a note to let you know that I've just added the patch titled

    media: bdisp: Add missing check for create_workqueue

to the 6.2-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-bdisp-add-missing-check-for-create_workqueue.patch
and it can be found in the queue-6.2 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit 4c78e403beef21046ff1efd370b3f08e15f25689
Author: Jiasheng Jiang <jiasheng@xxxxxxxxxxx>
Date:   Wed Feb 8 08:14:42 2023 +0100

    media: bdisp: Add missing check for create_workqueue
    
    [ Upstream commit 2371adeab717d8fe32144a84f3491a03c5838cfb ]
    
    Add the check for the return value of the create_workqueue
    in order to avoid NULL pointer dereference.
    
    Fixes: 28ffeebbb7bd ("[media] bdisp: 2D blitter driver using v4l2 mem2mem framework")
    Signed-off-by: Jiasheng Jiang <jiasheng@xxxxxxxxxxx>
    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/st/sti/bdisp/bdisp-v4l2.c b/drivers/media/platform/st/sti/bdisp/bdisp-v4l2.c
index dd74cc43920d3..080da254b9109 100644
--- a/drivers/media/platform/st/sti/bdisp/bdisp-v4l2.c
+++ b/drivers/media/platform/st/sti/bdisp/bdisp-v4l2.c
@@ -1309,6 +1309,8 @@ static int bdisp_probe(struct platform_device *pdev)
 	init_waitqueue_head(&bdisp->irq_queue);
 	INIT_DELAYED_WORK(&bdisp->timeout_work, bdisp_irq_timeout);
 	bdisp->work_queue = create_workqueue(BDISP_NAME);
+	if (!bdisp->work_queue)
+		return -ENOMEM;
 
 	spin_lock_init(&bdisp->slock);
 	mutex_init(&bdisp->lock);



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