From b0ceaa067057cf91caa180636d2e4c3dc786a98f Mon Sep 17 00:00:00 2001
From: Laszlo Papp <ext-laszlo.papp@nokia.com>
Date: Wed, 9 Mar 2011 17:22:07 +0200
Subject: Check the negative return value after an open syscall

---
 lib/mount.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

(limited to 'lib/mount.c')

diff --git a/lib/mount.c b/lib/mount.c
index 224ae9d..8065087 100644
--- a/lib/mount.c
+++ b/lib/mount.c
@@ -366,8 +366,10 @@ static int fuse_mount_fusermount(const char *mountpoint, const char *opts,
 
 		if (quiet) {
 			int fd = open("/dev/null", O_RDONLY);
-			dup2(fd, 1);
-			dup2(fd, 2);
+			if (fd != -1) {
+				dup2(fd, 1);
+				dup2(fd, 2);
+			}
 		}
 
 		argv[a++] = FUSERMOUNT_PROG;
-- 
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