commit dd5b0d71d660a4e31bdf8bd0d130ce582833db9f
author Markus Armbruster <armbru@redhat.com> Tue May 11 15:36:46 2010 +0200
committer Kevin Wolf <kwolf@redhat.com> Tue Jun 15 09:41:58 2010 +0200
tree 11bfbcbfeea9ff46aa3ebb7a462456e1d539c0a9
parent feeee5aca765606818e00f5a19d19f141f4ae365

Fix regression for "-drive file="

Empty file used to create an empty drive (no media).  Since commit
9dfd7c7a, it's an error: "qemu: could not open disk image : No such
file or directory".  Older versions of libvirt can choke on this.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

blockdev.c

diff --git a/blockdev.c b/blockdev.c
index 642ce75..dbeef09 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -462,7 +462,7 @@
     case IF_COUNT:
         abort();
     }
-    if (!file) {
+    if (!file || !*file) {
         *fatal_error = 0;
         return NULL;
     }