bjoernager/rust
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add checking (r == 0)

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This commit is contained in:
Baoshan Pang 2019-10-07 09:59:08 -07:00 • committed by Baoshan
parent 46bf6ad416
commit 175db95b3d
1 changed files with 1 additions and 1 deletions
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2
src/libstd/sys/vxworks/rwlock.rs
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@ -25,7 +25,7 @@ impl RWLock {
let r = libc::pthread_rwlock_rdlock(self.inner.get());
if r == libc::EAGAIN {
panic!("rwlock maximum reader count exceeded");
} else if r == libc::EDEADLK || *self.write_locked.get() {
} else if r == libc::EDEADLK || (r == 0 && *self.write_locked.get()) {
if r == 0 {
self.raw_unlock();
}