block: Clean up "Could not create temporary overlay" error message
bdrv_create() sets an error and returns -errno on failure. When the
latter is interesting, the error is created with error_setg_errno().
bdrv_append_temp_snapshot() uses the error's message to create a new
one with error_setg_errno(). This adds a strerror() that is either
uninteresting or duplicate. Use error_setg() instead.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <1450452927-8346-7-git-send-email-armbru@redhat.com>
diff --git a/block.c b/block.c
index 01655de..b2bdff9 100644
--- a/block.c
+++ b/block.c
@@ -1463,9 +1463,8 @@
ret = bdrv_create(&bdrv_qcow2, tmp_filename, opts, &local_err);
qemu_opts_del(opts);
if (ret < 0) {
- error_setg_errno(errp, -ret, "Could not create temporary overlay "
- "'%s': %s", tmp_filename,
- error_get_pretty(local_err));
+ error_setg(errp, "Could not create temporary overlay '%s': %s",
+ tmp_filename, error_get_pretty(local_err));
error_free(local_err);
goto out;
}
