Check rom_load_all() return value.

Check rom_load_all() return value.
Also don't make option rom loading failure fatal.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

hw/loader.c

@@ -669,7 +669,7 @@ int rom_load_all(void)
                         "addr 0x" TARGET_FMT_plx
                         ", size 0x%zx, max 0x" TARGET_FMT_plx ")\n",
                         rom->name, addr, rom->romsize, rom->max);
-                return -1;
+                continue;
             }
         } else {
             /* fixed address requested */

vl.c

@@ -6049,7 +6049,10 @@ int main(int argc, char **argv, char **envp)
 
     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) {