diff options
| -rw-r--r-- | sys/kern/kern_umtx.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/sys/kern/kern_umtx.c b/sys/kern/kern_umtx.c index dd205d0..f871d41 100644 --- a/sys/kern/kern_umtx.c +++ b/sys/kern/kern_umtx.c @@ -2965,9 +2965,12 @@ sleep: suword32(&rwlock->rw_blocked_readers, blocked_readers-1); if (blocked_readers == 1) { rv = fueword32(&rwlock->rw_state, &state); - if (rv == -1) + if (rv == -1) { + umtxq_unbusy_unlocked(&uq->uq_key); error = EFAULT; - while (error == 0) { + break; + } + for (;;) { rv = casueword32(&rwlock->rw_state, state, &oldstate, state & ~URWLOCK_READ_WAITERS); if (rv == -1) { @@ -2978,6 +2981,8 @@ sleep: break; state = oldstate; error = umtxq_check_susp(td); + if (error != 0) + break; } } |
