diff options
Diffstat (limited to 'linuxthreads/spinlock.c')
| -rw-r--r-- | linuxthreads/spinlock.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/linuxthreads/spinlock.c b/linuxthreads/spinlock.c index 2546e2a..8a8d3bf 100644 --- a/linuxthreads/spinlock.c +++ b/linuxthreads/spinlock.c @@ -47,9 +47,10 @@ void __pthread_lock(struct _pthread_fastlock * lock) newstatus = 1; } else { self = thread_self(); - self->p_nextwaiting = (pthread_descr) oldstatus; newstatus = (long) self; } + if (self != NULL) + self->p_nextwaiting = (pthread_descr) oldstatus; } while(! compare_and_swap(&lock->status, oldstatus, newstatus, &lock->spinlock)); if (oldstatus != 0) suspend(self); |