block: use correct filename for error report

The content filename point to will be erased by qemu_opts_absorb_qdict()
in raw_open_common() in drv->bdrv_file_open()

So it's better to use bs->filename.

Signed-off-by: Dunrong Huang <riegamaths@gmail.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

diff --git a/block.c b/block.c
index 93e113ad7c0e63eed6430777da67fda694479438..e2d9936227d57186068c75f79d48d7e1b7c86a0c 100644 (file)
--- a/block.c
+++ b/block.c
@@ -808,8 +808,8 @@ static int bdrv_open_common(BlockDriverState *bs, BlockDriverState *file,
     if (ret < 0) {
         if (error_is_set(&local_err)) {
             error_propagate(errp, local_err);
-        } else if (filename) {
-            error_setg_errno(errp, -ret, "Could not open '%s'", filename);
+        } else if (bs->filename[0]) {
+            error_setg_errno(errp, -ret, "Could not open '%s'", bs->filename);
         } else {
             error_setg_errno(errp, -ret, "Could not open image");
         }