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| author | Hans Verkuil <hverkuil@xs4all.nl> | 2011-12-13 05:44:42 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-01-06 11:48:22 -0200 |
| commit | d2f7a1a2467c01b569d2a7fbf10e8894a3f0e496 (patch) | |
| tree | f5037f17ea9219456c4608fc4a5af8a3dcb2ddb3 /drivers/media/video/davinci/vpif_capture.c | |
| parent | bb0a896e3d50833a43f94264ec8e66900b796b8b (diff) | |
| download | linux-d2f7a1a2467c01b569d2a7fbf10e8894a3f0e496.tar.bz2 | |
[media] vpif_capture.c: v4l2_device_register() is called too late in vpif_probe()
The function v4l2_device_register() is called too late in vpif_probe().
This meant that vpif_obj.v4l2_dev is accessed before it is initialized
which caused a crash.
This used to work in the past, but video_register_device() is now actually
using the v4l2_dev pointer.
Note that vpif_display.c doesn't have this bug, there v4l2_device_register()
is called at the beginning of vpif_probe.
Signed-off-by: Georgios Plakaris <gplakari@cisco.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Manjunath Hadli <Manjunath.hadli@ti.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/davinci/vpif_capture.c')
| -rw-r--r-- | drivers/media/video/davinci/vpif_capture.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/drivers/media/video/davinci/vpif_capture.c b/drivers/media/video/davinci/vpif_capture.c index 49e4deb50043..6504e40a31dd 100644 --- a/drivers/media/video/davinci/vpif_capture.c +++ b/drivers/media/video/davinci/vpif_capture.c @@ -2177,6 +2177,12 @@ static __init int vpif_probe(struct platform_device *pdev) return err; } + err = v4l2_device_register(vpif_dev, &vpif_obj.v4l2_dev); + if (err) { + v4l2_err(vpif_dev->driver, "Error registering v4l2 device\n"); + return err; + } + k = 0; while ((res = platform_get_resource(pdev, IORESOURCE_IRQ, k))) { for (i = res->start; i <= res->end; i++) { @@ -2246,12 +2252,6 @@ static __init int vpif_probe(struct platform_device *pdev) goto probe_out; } - err = v4l2_device_register(vpif_dev, &vpif_obj.v4l2_dev); - if (err) { - v4l2_err(vpif_dev->driver, "Error registering v4l2 device\n"); - goto probe_subdev_out; - } - for (i = 0; i < subdev_count; i++) { subdevdata = &config->subdev_info[i]; vpif_obj.sd[i] = @@ -2281,7 +2281,6 @@ probe_subdev_out: j = VPIF_CAPTURE_MAX_DEVICES; probe_out: - v4l2_device_unregister(&vpif_obj.v4l2_dev); for (k = 0; k < j; k++) { /* Get the pointer to the channel object */ ch = vpif_obj.dev[k]; @@ -2303,6 +2302,7 @@ vpif_int_err: if (res) i = res->end; } + v4l2_device_unregister(&vpif_obj.v4l2_dev); return err; } |