dmsetup: make sure subcommand is initialised (Coverity)

diff --git a/tools/dmsetup.c b/tools/dmsetup.c
index dc002b0cae9cf5d9ad7fddece09c1f4c0783e656..8bcf4d5c8d7205c3500d7ee06861bfbdfc8f1182 100644 (file)
--- a/tools/dmsetup.c
+++ b/tools/dmsetup.c
@@ -5964,7 +5964,8 @@ unknown:
        if (cmd->has_subcommands) {
                subcommand = argv[0];
                argc--, argv++;
-       }
+       } else
+               subcommand = (char *) "";
 
        if (_switches[COLS_ARG] && !_report_init(cmd, subcommand))
                goto out;