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-rw-r--r--include/asm-s390/spinlock.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/include/asm-s390/spinlock.h b/include/asm-s390/spinlock.h
index 8ff10300f7e..321b23bba1e 100644
--- 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;