[PATCH] vesafb: Add blanking support

[linux-2.6] / include / asm-s390 / spinlock.h

diff --git a/include/asm-s390/spinlock.h b/include/asm-s390/spinlock.h
index 8ff10300f7ee7afbf69f2ada83d387846aa60187..321b23bba1ecf16987b724e45f79319f55972159 100644 (file)
--- a/include/asm-s390/spinlock.h
+++ b/include/asm-s390/spinlock.h
@@ -47,7 +47,7 @@ extern int _raw_spin_trylock_retry(spinlock_t *lp, unsigned int pc);
 
 static inline void _raw_spin_lock(spinlock_t *lp)
 {
-       unsigned long pc = (unsigned long) __builtin_return_address(0);
+       unsigned long pc = 1 | (unsigned long) __builtin_return_address(0);
 
        if (unlikely(_raw_compare_and_swap(&lp->lock, 0, pc) != 0))
                _raw_spin_lock_wait(lp, pc);
@@ -55,7 +55,7 @@ static inline void _raw_spin_lock(spinlock_t *lp)
 
 static inline int _raw_spin_trylock(spinlock_t *lp)
 {
-       unsigned long pc = (unsigned long) __builtin_return_address(0);
+       unsigned long pc = 1 | (unsigned long) __builtin_return_address(0);
 
        if (likely(_raw_compare_and_swap(&lp->lock, 0, pc) == 0))
                return 1;