btrfs-progs: fi show: print error message if no valid Btrfs is specified

* Before this patch =============================== # ./btrfs fi show foo # "foo" doesn't mean any valid Btrfs # # no error message # echo $? 1 =============================== * After this patch =============================== # ./btrfs fi show foo ERROR: foo is not a valid Btrfs # # echo $? 1 =============================== Signed-off-by: Satoru Takeuchi <[email protected]> Signed-off-by: David Sterba <[email protected]>
soffokl · Jun 24, 2016 · 0346432 · 0346432
1 parent cd9b35c
commit 0346432
Showing 1 changed file with 3 additions and 2 deletions.
diff --git a/cmds-filesystem.c b/cmds-filesystem.c
@@ -898,9 +898,10 @@ static int cmd_filesystem_show(int argc, char **argv)
 	list_for_each_entry(fs_devices, &all_uuids, list)
 		print_one_uuid(fs_devices, unit_mode);
 
-	if (search && !found)
+	if (search && !found) {
+		error("not a valid btrfs filesystem: %s", search);
 		ret = 1;
-
+	}
 	while (!list_empty(&all_uuids)) {
 		fs_devices = list_entry(all_uuids.next,
 					struct btrfs_fs_devices, list);