block: Don't call blk_bs() twice in bdrv_lookup_bs()

Signed-off-by: Alberto Garcia <berto@igalia.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-10-26 16:46:49 +02:00 · 2015-10-26 16:46:49 +02:00 · 9f4ed6fbd2
commit 9f4ed6fbd2
parent 3c07587d49
1 changed files with 3 additions and 3 deletions
--- a/block.c
+++ b/block.c
@ -2683,12 +2683,12 @@ BlockDriverState *bdrv_lookup_bs(const char *device,
        blk = blk_by_name(device);

        if (blk) {
-            if (!blk_bs(blk)) {
+            bs = blk_bs(blk);
+            if (!bs) {
                error_setg(errp, "Device '%s' has no medium", device);
-                return NULL;
            }

-            return blk_bs(blk);
+            return bs;
        }
    }