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| author | Karsten Keil <kkeil@suse.de> | 2007-10-18 12:04:32 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-18 23:37:17 +0200 |
| commit | 1ccfd63367c1a6aaf8b33943f18856dde85f2f0b (patch) | |
| tree | 86cbe65716f8f6181f158b537b5d0ba1e3c07c73 /drivers/char/vt.c | |
| parent | i4l: fix random freezes with AVM B1 drivers (diff) | |
| download | linux-1ccfd63367c1a6aaf8b33943f18856dde85f2f0b.tar.xz linux-1ccfd63367c1a6aaf8b33943f18856dde85f2f0b.zip | |
i4l: Fix random hard freeze with AVM c4 card
The patch
- Includes the call to capilib_data_b3_req in the spinlock. This routine
in turn calls the offending mq_enqueue routine that triggered the
freeze if not locked. This should also fix other indicators of
incosistent capilib_msgidqueue list, that trigger messages like:
Oct 5 03:05:57 BERL0 kernel: kcapi: msgid 3019 ncci 0x30301 not on queue
that we saw several times a day (usually several in a row).
- Fixes all occurrences of c4_dispatch_tx to be called with active
spinlock, there were some instances where no lock was active. Mostly
these are in very infrequently called routines, so the additional
performance penalty is minimal.
Signed-off-by: Karsten Keil <kkeil@suse.de>
Signed-off-by: Rainer Brestan <rainer.brestan@frequentis.com>
Signed-off-by: Ralf Schlatterbeck <rsc@runtux.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/char/vt.c')
0 files changed, 0 insertions, 0 deletions