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[media] v4l: soc-camera: fix multiple simultaneous user case

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A recent patch has introduced a regression, whereby a second open of an
soc-camera video device breaks the running capture. This patch fixes this bug
by guaranteeing, that video buffers get initialised only during the first open
of the device node.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Guennadi Liakhovetski 2010-12-25 18:29:52 -03:00 committed by Mauro Carvalho Chehab
parent 501aaa110a
commit 24d8c0293b
1 changed files with 2 additions and 2 deletions
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4
drivers/media/video/soc_camera.c
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@ -405,13 +405,13 @@ static int soc_camera_open(struct file *file)
ret = soc_camera_set_fmt(icd, &f);
if (ret < 0)
goto esfmt;
ici->ops->init_videobuf(&icd->vb_vidq, icd);
}
file->private_data = icd;
dev_dbg(&icd->dev, "camera device open\n");
ici->ops->init_videobuf(&icd->vb_vidq, icd);
mutex_unlock(&icd->video_lock);
return 0;