utils: fix the way to detect blocking signal

Signed-off-by: Yifeng Tan <tanyifeng1@huawei.com>
lxc · Jun 19, 2017 · 455f2b2 · 455f2b2
1 parent d21c360
commit 455f2b2
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/lxc/utils.c b/src/lxc/utils.c
@@ -1928,7 +1928,7 @@ bool task_blocking_signal(pid_t pid, int signal)
 				goto out;
 	}
 
-	if (sigblk & signal)
+	if (sigblk & (1 << (signal - 1)))
 		bret = true;
 
 out: