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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/proc.c
parentf438d914b220051d4cbc65cbc5d98e163c85c93b (diff)
downloadtalos-op-linux-4d1ff582246de67b15e3cd2427a39875943ae895.tar.gz
talos-op-linux-4d1ff582246de67b15e3cd2427a39875943ae895.zip
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/proc.c')
-rw-r--r--drivers/isdn/gigaset/proc.c8
1 files changed, 1 insertions, 7 deletions
diff --git a/drivers/isdn/gigaset/proc.c b/drivers/isdn/gigaset/proc.c
index e767afa55abf..da6f3acf9fd0 100644
--- a/drivers/isdn/gigaset/proc.c
+++ b/drivers/isdn/gigaset/proc.c
@@ -19,15 +19,9 @@
static ssize_t show_cidmode(struct device *dev,
struct device_attribute *attr, char *buf)
{
- int ret;
- unsigned long flags;
struct cardstate *cs = dev_get_drvdata(dev);
- spin_lock_irqsave(&cs->lock, flags);
- ret = sprintf(buf, "%u\n", cs->cidmode);
- spin_unlock_irqrestore(&cs->lock, flags);
-
- return ret;
+ return sprintf(buf, "%u\n", cs->cidmode);
}
static ssize_t set_cidmode(struct device *dev, struct device_attribute *attr,
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