Linux: Use losetup -f where available.

Signed-off-by: Keir Fraser <keir.fraser@citrix.com>

diff --git a/tools/hotplug/Linux/block b/tools/hotplug/Linux/block
index 1d9c917c797bb6482a05c19f006cab353d1d7845..f22a1946495a9c1fb241f4ced520e1fad104f1b6 100644 (file)
--- a/tools/hotplug/Linux/block
+++ b/tools/hotplug/Linux/block
@@ -290,7 +290,7 @@ mount it read-write in a guest domain."
           done
         fi
 
-        loopdev=$(find_free_loopback_dev)
+        loopdev=$(losetup -f 2>/dev/null || find_free_loopback_dev)
         if [ "$loopdev" = '' ]
         then
           release_lock "block"