diff options
-rw-r--r-- | bitops.h | 2 |
1 files changed, 1 insertions, 1 deletions
@@ -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; |