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| author | Hans Verkuil <hverkuil@xs4all.nl> | 2008-08-24 16:18:47 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2008-10-12 13:36:54 +0200 |
| commit | 9d95af9d09d537d287eea9914c0d1ca4cfa0ec7f (patch) | |
| tree | 33fa1c6fb5aed9a056cc5baec7f9b8c70654d45e /drivers/media/video/v4l2-dev.c | |
| parent | V4L/DVB (8788): v4l: replace video_get_drvdata(video_devdata(filp)) with vide... (diff) | |
| download | linux-9d95af9d09d537d287eea9914c0d1ca4cfa0ec7f.tar.xz linux-9d95af9d09d537d287eea9914c0d1ca4cfa0ec7f.zip | |
V4L/DVB (8791): v4l2-dev: do not clear the driver_data field
The driver_data field of the device structure was zeroed, thus losing
this information. Many drivers set this up before calling
video_device_register, so we have to ensure that it isn't lost.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/v4l2-dev.c')
| -rw-r--r-- | drivers/media/video/v4l2-dev.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/media/video/v4l2-dev.c b/drivers/media/video/v4l2-dev.c index 1ec0a1a8fb73..99f7ee4bc503 100644 --- a/drivers/media/video/v4l2-dev.c +++ b/drivers/media/video/v4l2-dev.c @@ -226,6 +226,7 @@ int video_register_device_index(struct video_device *vfd, int type, int nr, int end; int ret; char *name_base; + void *priv = video_get_drvdata(vfd); /* the release callback MUST be present */ BUG_ON(!vfd->release); @@ -295,6 +296,9 @@ int video_register_device_index(struct video_device *vfd, int type, int nr, /* sysfs class */ memset(&vfd->dev, 0, sizeof(vfd->dev)); + /* The memset above cleared the device's drvdata, so + put back the copy we made earlier. */ + video_set_drvdata(vfd, priv); vfd->dev.class = &video_class; vfd->dev.devt = MKDEV(VIDEO_MAJOR, vfd->minor); if (vfd->parent) |