diff options
| author | surinder <srplsnh@gmail.com> | 2008-05-28 04:51:16 -0400 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2008-06-02 08:44:17 -0400 |
| commit | 1e5c594607778f551b729577b046ee5d9333cfb5 (patch) | |
| tree | d153988fa057faa33e747b94dbc73b5e9075c105 /include | |
| parent | ea6a7404da4b381b35bcec48338d376a3873ea46 (diff) | |
[ARM] 5067/1: _raw_write_can_lock macro bugfix
The current __raw_write_can_lock macro tests whether the lock can be
locked by checking if it is equal to 0x80000000, whereas the lock
should be lockable if its value is 0 i.e. unlocked state is
represented by 0. Hence the macro should test the value of lock
against 0 and not 0x80000000.
Signed-off-by: Surinder Pal Singh <srplsnh@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-arm/spinlock.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/asm-arm/spinlock.h b/include/asm-arm/spinlock.h index 800ba5254daf..2b41ebbfa7ff 100644 --- a/include/asm-arm/spinlock.h +++ b/include/asm-arm/spinlock.h | |||
| @@ -142,7 +142,7 @@ static inline void __raw_write_unlock(raw_rwlock_t *rw) | |||
| 142 | } | 142 | } |
| 143 | 143 | ||
| 144 | /* write_can_lock - would write_trylock() succeed? */ | 144 | /* write_can_lock - would write_trylock() succeed? */ |
| 145 | #define __raw_write_can_lock(x) ((x)->lock == 0x80000000) | 145 | #define __raw_write_can_lock(x) ((x)->lock == 0) |
| 146 | 146 | ||
| 147 | /* | 147 | /* |
| 148 | * Read locks are a bit more hairy: | 148 | * Read locks are a bit more hairy: |