diff options
| author | Simon Arlott <simon@fire.lp0.eu> | 2007-03-10 04:21:25 -0500 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@infradead.org> | 2007-03-27 07:45:54 -0400 |
| commit | c278850206fd9df0bb62a72ca0b277fe20c5a452 (patch) | |
| tree | 439ae68737b5bcb5d473b3d12c3d5417f697ccb3 /kernel/compat.c | |
| parent | b10fece583fdfdb3d2f29b0da3896ec58b8fe122 (diff) | |
V4L/DVB (5400): Core: fix several locking related problems
Fix several instances of dvb-core functions using mutex_lock_interruptible
and returning -ERESTARTSYS where the calling function will either never
retry or never check the return value.
These cause a race condition with dvb_dmxdev_filter_free and
dvb_dvr_release, both of which are filesystem release functions whose
return value is ignored and will never be retried. When this happens it
becomes impossible to open dvr0 again (-EBUSY) since it has not been
released properly.
Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-By: Johannes Stezenbach <js@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Diffstat (limited to 'kernel/compat.c')
0 files changed, 0 insertions, 0 deletions