1 files changed, 5 insertions, 3 deletions
diff --git a/block.c b/block.c
index 2c00dddd80..0fd830e2e2 100644
--- a/block.c
+++ b/block.c
@@ -1045,14 +1045,16 @@ static int find_image_format(BlockBackend *file, const char *filename,
         return ret;
     }
 
-    drv = bdrv_probe_all(buf, ret, filename);
+    drv = bdrv_probe_all(buf, sizeof(buf), filename);
     if (!drv) {
         error_setg(errp, "Could not determine image format: No compatible "
                    "driver found");
-        ret = -ENOENT;
+        *pdrv = NULL;
+        return -ENOENT;
     }
+
     *pdrv = drv;
-    return ret;
+    return 0;
 }
 
 /**