diff options
| author | Mike Isely <isely@pobox.com> | 2008-02-06 04:24:51 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@infradead.org> | 2008-04-24 14:09:46 -0300 |
| commit | ceb4340deb9bf5f8371d47ef906a83e6784345b0 (patch) | |
| tree | 10e9e3e24d59c86783fde652beb24ffdb9211e31 | |
| parent | e2780fb41102f9844ae6182c03908f03c3cb9163 (diff) | |
V4L/DVB (7687): pvrusb2: Fix oops in pvrusb2-dvb
The pvrusb2-dvb feed thread cannot be allowed to exit by itself
without first waiting for kthread_should_stop() to return true.
Otherwise the driver will have a dangling task_struct context, which
will cause a very nasty kernel oops.
Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
| -rw-r--r-- | drivers/media/video/pvrusb2/pvrusb2-dvb.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/media/video/pvrusb2/pvrusb2-dvb.c b/drivers/media/video/pvrusb2/pvrusb2-dvb.c index 69ac59aa654c..dd693a1980e8 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-dvb.c +++ b/drivers/media/video/pvrusb2/pvrusb2-dvb.c @@ -138,9 +138,8 @@ static void pvr2_dvb_fh_done(struct pvr2_dvb_fh *fh) pvr2_channel_done(&fh->channel); } -static int pvr2_dvb_feed_thread(void *data) +static int pvr2_dvb_feed_func(struct pvr2_dvb_adapter *adap) { - struct pvr2_dvb_adapter *adap = data; struct pvr2_dvb_fh fh; int ret; unsigned int count; @@ -203,12 +202,18 @@ static int pvr2_dvb_feed_thread(void *data) printk(KERN_DEBUG "dvb thread stopped\n"); + return 0; +} + +static int pvr2_dvb_feed_thread(void *data) +{ + int stat = pvr2_dvb_feed_func(data); /* from videobuf-dvb.c: */ while (!kthread_should_stop()) { set_current_state(TASK_INTERRUPTIBLE); schedule(); } - return 0; + return stat; } static int pvr2_dvb_ctrl_feed(struct dvb_demux_feed *dvbdmxfeed, int onoff) |