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Diffstat (limited to 'nptl/sysdeps/unix/sysv/linux/i386/i486/sem_post.S')
-rw-r--r--nptl/sysdeps/unix/sysv/linux/i386/i486/sem_post.S7
1 files changed, 5 insertions, 2 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i486/sem_post.S b/nptl/sysdeps/unix/sysv/linux/i386/i486/sem_post.S
index 71e96d2228..2813c20ef8 100644
--- a/nptl/sysdeps/unix/sysv/linux/i386/i486/sem_post.S
+++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/sem_post.S
@@ -1,4 +1,4 @@
-/* Copyright (C) 2002, 2003, 2005 Free Software Foundation, Inc.
+/* Copyright (C) 2002, 2003, 2005, 2007 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
@@ -44,9 +44,12 @@ __new_sem_post:
LOCK
xaddl %edx, (%ebx)
+ testl %edx, %edx
+ jne 2f
+
movl $SYS_futex, %eax
movl $FUTEX_WAKE, %ecx
- addl $1, %edx
+ movl $1, %edx
ENTER_KERNEL
testl %eax, %eax