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authorTilman Schmidt <tilman@imap.cc>2007-10-16 01:27:50 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-16 09:43:10 -0700
commit4d1ff582246de67b15e3cd2427a39875943ae895 (patch)
tree659e1afb58fbaaf9ed70a830cb6fc6f69398d6e6 /drivers/isdn/gigaset/bas-gigaset.c
parentf438d914b220051d4cbc65cbc5d98e163c85c93b (diff)
gigaset: remove pointless locking
Remove pointless taking of spinlock around reading a single pointer-sized or smaller variable. Signed-off-by: Tilman Schmidt <tilman@imap.cc> Acked-by: Karsten Keil <kkeil@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/isdn/gigaset/bas-gigaset.c')
-rw-r--r--drivers/isdn/gigaset/bas-gigaset.c9
1 files changed, 1 insertions, 8 deletions
diff --git a/drivers/isdn/gigaset/bas-gigaset.c b/drivers/isdn/gigaset/bas-gigaset.c
index 00e31609a23..af7648274b3 100644
--- a/drivers/isdn/gigaset/bas-gigaset.c
+++ b/drivers/isdn/gigaset/bas-gigaset.c
@@ -1936,14 +1936,7 @@ static int gigaset_write_room(struct cardstate *cs)
*/
static int gigaset_chars_in_buffer(struct cardstate *cs)
{
- unsigned long flags;
- unsigned bytes;
-
- spin_lock_irqsave(&cs->cmdlock, flags);
- bytes = cs->cmdbytes;
- spin_unlock_irqrestore(&cs->cmdlock, flags);
-
- return bytes;
+ return cs->cmdbytes;
}
/* gigaset_brkchars