diff options
| author | Guennadi Liakhovetski <g.liakhovetski@gmx.de> | 2009-08-05 20:06:31 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2009-08-13 20:39:11 -0300 |
| commit | 2dd54a54c19d0e5b50f4e1c591653772ead9d4a1 (patch) | |
| tree | 3ab873ae09a4cc3f56906dbb4712e1331a078519 /drivers/media/video/sh_mobile_ceu_camera.c | |
| parent | 7d2e2e35fb50f381c9398e481aac1e1729765ae3 (diff) | |
V4L/DVB (12424): soc-camera: fix recursive locking in .buf_queue()
The .buf_queue() V4L2 driver method is called under
spinlock_irqsave(q->irqlock,...), don't take the lock again inside the
function.
Reported-by: Antonio Ospite <ospite@studenti.unina.it>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/sh_mobile_ceu_camera.c')
| -rw-r--r-- | drivers/media/video/sh_mobile_ceu_camera.c | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/drivers/media/video/sh_mobile_ceu_camera.c b/drivers/media/video/sh_mobile_ceu_camera.c index 0db88a53d92..e86878deea7 100644 --- a/drivers/media/video/sh_mobile_ceu_camera.c +++ b/drivers/media/video/sh_mobile_ceu_camera.c @@ -282,27 +282,24 @@ out: return ret; } +/* Called under spinlock_irqsave(&pcdev->lock, ...) */ static void sh_mobile_ceu_videobuf_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb) { struct soc_camera_device *icd = vq->priv_data; struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent); struct sh_mobile_ceu_dev *pcdev = ici->priv; - unsigned long flags; dev_dbg(&icd->dev, "%s (vb=0x%p) 0x%08lx %zd\n", __func__, vb, vb->baddr, vb->bsize); vb->state = VIDEOBUF_QUEUED; - spin_lock_irqsave(&pcdev->lock, flags); list_add_tail(&vb->queue, &pcdev->capture); if (!pcdev->active) { pcdev->active = vb; sh_mobile_ceu_capture(pcdev); } - - spin_unlock_irqrestore(&pcdev->lock, flags); } static void sh_mobile_ceu_videobuf_release(struct videobuf_queue *vq, |