From: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Date: Mon, 27 Jun 2011 21:07:25 +0000 (-0400)
Subject: uatomic: fix warning about unused variable
X-Git-Tag: v0.6.3~1
X-Git-Url: https://git.lttng.org./?a=commitdiff_plain;h=c94627b55591d11b45e7aba6cc32d2e541d710d1;p=userspace-rcu.git

uatomic: fix warning about unused variable

Fix:

compat_arch_x86.c: In function '_compat_uatomic_set':
compat_arch_x86.c:104:16: warning: variable 'result' set but not used [-Wunused-but-set-variable]

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
---

diff --git a/compat_arch_x86.c b/compat_arch_x86.c
index e882a4a..714201b 100644
--- a/compat_arch_x86.c
+++ b/compat_arch_x86.c
@@ -122,10 +122,11 @@ unsigned long _compat_uatomic_set(void *addr, unsigned long _new, int len)
 		 * generate an illegal instruction. Cannot catch this with
 		 * linker tricks when optimizations are disabled.
 		 */
+		result = 0;
 		__asm__ __volatile__("ud2");
 	}
 	mutex_lock_signal_restore(&compat_mutex, &mask);
-	return _new;
+	return result;
 }
 
 unsigned long _compat_uatomic_xchg(void *addr, unsigned long _new, int len)