Commit c6a315f0 authored Feb 08, 2023 by Jiasheng Jiang Committed by Greg Kroah-Hartman May 17, 2023

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: 28ffeebb ("[media] bdisp: 2D blitter driver using v4l2 mem2mem framework")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

parent 1a057b68

drivers/media/platform/sti/bdisp/bdisp-v4l2.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -1308,6 +1308,8 @@ 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);