summaryrefslogtreecommitdiffstats
path: root/drivers/input/serio/libps2.c
diff options
context:
space:
mode:
authorArjan van de Ven <arjan@linux.intel.com>2006-07-03 00:25:08 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-07-03 15:27:07 -0700
commit3aceafc1e2596f1c2c4e053126561f00b68e3a1a (patch)
treebd570bd077ef3e8ab43bf7904c40711cf42a8323 /drivers/input/serio/libps2.c
parentf20dc5f7c1adf1c4b68b7672d6f2002cb824e636 (diff)
[PATCH] lockdep: annotate serio
The PS/2 code has a natural device order and there is a one level recursion in this device order in terms of the cmd_mutex; annotate this explicit recursion as ok. Has no effect on non-lockdep kernels. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Cc: Dmitry Torokhov <dtor_core@ameritech.net> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/input/serio/libps2.c')
-rw-r--r--drivers/input/serio/libps2.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/input/serio/libps2.c b/drivers/input/serio/libps2.c
index 79c97f94bcb..61a6f977846 100644
--- a/drivers/input/serio/libps2.c
+++ b/drivers/input/serio/libps2.c
@@ -177,7 +177,7 @@ int ps2_command(struct ps2dev *ps2dev, unsigned char *param, int command)
return -1;
}
- mutex_lock(&ps2dev->cmd_mutex);
+ mutex_lock_nested(&ps2dev->cmd_mutex, SINGLE_DEPTH_NESTING);
serio_pause_rx(ps2dev->serio);
ps2dev->flags = command == PS2_CMD_GETID ? PS2_FLAG_WAITID : 0;