fix incorrect argument checking for "btrfs sub snap -r"

Stephane Chazelas and Andreas Philipp spotted that the earlier patch
fixing this issue was incomplete, and should also update the argument-
count checking code as well.

Signed-off-by: Hugo Mills <hugo@carfax.org.uk>

diff --git a/btrfs_cmds.c b/btrfs_cmds.c
index d91bccd..699dfc2 100644 (file)
--- a/btrfs_cmds.c
+++ b/btrfs_cmds.c
@@ -372,7 +372,7 @@ int do_clone(int argc, char **argv)
                        return 1;
                }
        }
-       if (argc - optind < 2) {
+       if (argc - optind != 2) {
                fprintf(stderr, "Invalid arguments for subvolume snapshot\n");
                free(argv);
                return 1;