commit 294dd0b86b1484aec7549663aff5b19c98a4b7fd
author David 'Digit' Turner <digit@google.com> Fri Feb 12 12:18:37 2010 -0800
committer David 'Digit' Turner <digit@google.com> Fri Feb 12 12:18:37 2010 -0800
tree 9a54351833b806c3f31f0b8400c10bd746938254
parent 1dcf07a84c93a0095875f2d2087bfe7bfb66a413

Fix sem_trywait() implementation + update changelog.

libc/bionic/semaphore.c

diff --git a/libc/bionic/semaphore.c b/libc/bionic/semaphore.c
index 0c94600..f4eebce 100644
--- a/libc/bionic/semaphore.c
+++ b/libc/bionic/semaphore.c
@@ -196,7 +196,8 @@
     if (__atomic_dec_if_positive(&sem->count) > 0) {
         return 0;
     } else {
-        return EAGAIN;
+        errno = EAGAIN;
+        return -1;
     }
 }