From: Laszlo Papp <ext-laszlo.papp@nokia.com>
Date: Mon, 7 Mar 2011 13:40:59 +0000 (+0200)
Subject: Check the 'mtablock' for negative value
X-Git-Tag: fuse_2_9_0~52
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=dba9185999dfa35161d4c810735df0ab3fde5104;p=qemu-gpiodev%2Flibfuse.git

Check the 'mtablock' for negative value
---

diff --git a/util/fusermount.c b/util/fusermount.c
index c37e57b..85292fb 100644
--- a/util/fusermount.c
+++ b/util/fusermount.c
@@ -124,8 +124,10 @@ static int lock_umount(void)
 
 static void unlock_umount(int mtablock)
 {
-	lockf(mtablock, F_ULOCK, 0);
-	close(mtablock);
+	if (mtablock >= 0) {
+		lockf(mtablock, F_ULOCK, 0);
+		close(mtablock);
+	}
 }
 
 static int add_mount(const char *source, const char *mnt, const char *type,