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| author | Christian Borntraeger <cborntra@de.ibm.com> | 2005-11-07 00:59:07 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-11-07 07:53:34 -0800 |
| commit | 187dfc67b461058bbb84a923a17871ed54e10f30 (patch) | |
| tree | 857b572a17c221a2c08e195f012fb68655514d60 /include/asm-s390/bitops.h | |
| parent | d4b68996785326a67e9842219ab69984243ec658 (diff) | |
| download | linux-187dfc67b461058bbb84a923a17871ed54e10f30.tar.bz2 | |
[PATCH] s390: test_bit return value
The test_bit function returns a non-boolean value, it returns 0,1,2,4,...
instead of only 0 or 1. This causes wrongs results in the mincore system
call. Check against 0 to get a proper boolean value.
Signed-off-by: Christian Borntraeger <cborntra@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/asm-s390/bitops.h')
| -rw-r--r-- | include/asm-s390/bitops.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/include/asm-s390/bitops.h b/include/asm-s390/bitops.h index 8651524217fd..b07c578b22ea 100644 --- a/include/asm-s390/bitops.h +++ b/include/asm-s390/bitops.h @@ -518,8 +518,8 @@ static inline int __test_bit(unsigned long nr, const volatile unsigned long *ptr static inline int __constant_test_bit(unsigned long nr, const volatile unsigned long *addr) { - return (((volatile char *) addr) - [(nr^(__BITOPS_WORDSIZE-8))>>3] & (1<<(nr&7))); + return ((((volatile char *) addr) + [(nr^(__BITOPS_WORDSIZE-8))>>3] & (1<<(nr&7)))) != 0; } #define test_bit(nr,addr) \ |