diff options
| author | Stefan Richter <stefanr@s5r6.in-berlin.de> | 2006-09-17 18:17:19 +0200 |
|---|---|---|
| committer | Stefan Richter <stefanr@s5r6.in-berlin.de> | 2006-09-17 18:19:31 +0200 |
| commit | 9b4f2e9576658c4e52d95dc8d309f51b2e2db096 (patch) | |
| tree | 7b1902b0f931783fccc6fee45c6f9c16b4fde5ce /drivers/input/serio/libps2.c | |
| parent | 3c6c65f5ed5a6d307bd607aecd06d658c0934d88 (diff) | |
| parent | 803db244b9f71102e366fd689000c1417b9a7508 (diff) | |
ieee1394: merge from Linus
Conflicts: drivers/ieee1394/hosts.c
Patch "lockdep: annotate ieee1394 skb-queue-head locking" was meddling
with patch "ieee1394: fix kerneldoc of hpsb_alloc_host".
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Diffstat (limited to 'drivers/input/serio/libps2.c')
| -rw-r--r-- | drivers/input/serio/libps2.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/input/serio/libps2.c b/drivers/input/serio/libps2.c index 79c97f94bcbd..ed202f2f251a 100644 --- a/drivers/input/serio/libps2.c +++ b/drivers/input/serio/libps2.c @@ -177,7 +177,12 @@ int ps2_command(struct ps2dev *ps2dev, unsigned char *param, int command) return -1; } - mutex_lock(&ps2dev->cmd_mutex); + if (send && !param) { + WARN_ON(1); + return -1; + } + + mutex_lock_nested(&ps2dev->cmd_mutex, SINGLE_DEPTH_NESTING); serio_pause_rx(ps2dev->serio); ps2dev->flags = command == PS2_CMD_GETID ? PS2_FLAG_WAITID : 0; |