Check rom_load_all() return value.

Check rom_load_all() return value.
Also don't make option rom loading failure fatal.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
diff --git a/vl.c b/vl.c
index 95abe7e..8d9d9c2 100644
--- a/vl.c
+++ b/vl.c
@@ -6049,7 +6049,10 @@
 
     qdev_machine_creation_done();
 
-    rom_load_all();
+    if (rom_load_all() != 0) {
+        fprintf(stderr, "rom loading failed\n");
+        exit(1);
+    }
 
     qemu_system_reset();
     if (loadvm) {