From: Corentin Chary <corentincj@iksaif.net>
Date: Thu, 24 Feb 2011 22:47:08 +0000 (+0100)
Subject: bitops: fix test_and_change_bit()
X-Git-Tag: TizenStudio_2.0_p2.3~3279
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=dee76ea91028a5a6f33a50a15b91cf99abcd0fe9;p=sdk%2Femulator%2Fqemu.git

bitops: fix test_and_change_bit()

./bitops.h:192: warning: ‘old’ is used uninitialized in this function

Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
---

diff --git a/bitops.h b/bitops.h
index ae7bcb1..e2b9df3 100644
--- a/bitops.h
+++ b/bitops.h
@@ -187,7 +187,7 @@ static inline int test_and_change_bit(int nr, volatile unsigned long *addr)
 {
 	unsigned long mask = BIT_MASK(nr);
 	unsigned long *p = ((unsigned long *)addr) + BIT_WORD(nr);
-	unsigned long old;
+	unsigned long old = *p;
 
 	*p = old ^ mask;
 	return (old & mask) != 0;