diff options
| author | Thierry <thierry.merle@free.fr> | 2006-12-04 08:31:17 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@infradead.org> | 2006-12-10 09:05:46 -0200 |
| commit | 5f7fb877be14da92803f0b5b60955e071ebe2d58 (patch) | |
| tree | 31f2201908f778d5d02ffb798bfa37346efaf108 /drivers/media/video/usbvision/usbvision.h | |
| parent | f2242ee5474f46d87a45cd4e214b5c3aa02ff293 (diff) | |
V4L/DVB (4928): Usbvision_v4l2 robustness on disconnect
This patch corrects 2 bugs (causes kernel oops) that occur when
unplugging the peripheral whereas nobody has opened it yet :
- do not call usbvision_stop_isoc if usbvision_init_isoc has not been called
- do not call wakeup_interruptible on waitqueues that did not have been
initialized with init_waitqueue_head
Signed-off-by: Thierry MERLE <thierry.merle@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Diffstat (limited to 'drivers/media/video/usbvision/usbvision.h')
| -rw-r--r-- | drivers/media/video/usbvision/usbvision.h | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/media/video/usbvision/usbvision.h b/drivers/media/video/usbvision/usbvision.h index 870c0cc81d84..ef83a5c4d2fd 100644 --- a/drivers/media/video/usbvision/usbvision.h +++ b/drivers/media/video/usbvision/usbvision.h @@ -227,9 +227,10 @@ enum FrameState { /* stream states */ enum StreamState { - Stream_Off, - Stream_Interrupt, - Stream_On, + Stream_Off, /* Driver streaming is completely OFF */ + Stream_Idle, /* Driver streaming is ready to be put ON by the application */ + Stream_Interrupt, /* Driver streaming must be interrupted */ + Stream_On, /* Driver streaming is put ON by the application */ }; enum IsocState { |