From: Lizhi Xu <lizhi.xu@windriver.com>
To: <syzbot+2622b51b35f91a00ea18@syzkaller.appspotmail.com>
Cc: <syzkaller-bugs@googlegroups.com>, <linux-kernel@vger.kernel.org>
Subject: Re: [syzbot] [media?] [usb?] INFO: task hung in vb2_video_unregister_device
Date: Thu, 29 Feb 2024 15:20:16 +0800 [thread overview]
Message-ID: <20240229072016.186240-1-lizhi.xu@windriver.com> (raw)
In-Reply-To: <0000000000008faf0a06126a0ffb@google.com>
#syz test https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
diff --git a/drivers/media/common/videobuf2/videobuf2-v4l2.c b/drivers/media/common/videobuf2/videobuf2-v4l2.c
index c575198e8354..437f80551a2d 100644
--- a/drivers/media/common/videobuf2/videobuf2-v4l2.c
+++ b/drivers/media/common/videobuf2/videobuf2-v4l2.c
@@ -1262,8 +1262,7 @@ void vb2_video_unregister_device(struct video_device *vdev)
get_device(&vdev->dev);
video_unregister_device(vdev);
if (vdev->queue) {
- struct mutex *lock = vdev->queue->lock ?
- vdev->queue->lock : vdev->lock;
+ struct mutex *lock = vdev->queue->lock;
if (lock)
mutex_lock(lock);
next prev parent reply other threads:[~2024-02-29 7:20 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-02-28 5:03 syzbot
2024-02-29 7:20 ` Lizhi Xu [this message]
2024-02-29 7:51 ` syzbot
2024-02-29 11:18 ` Edward Adam Davis
2024-02-29 12:03 ` syzbot
2024-02-29 12:21 ` [PATCH] media: fix " Edward Adam Davis
2024-02-29 12:36 ` Hans Verkuil
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