dev-prajnoha-pv-ext-flag-used - dmsetup: make sure subcommand is initialised (Coverity)

[Peter Rajnoha]

Gitweb:        http://git.fedorahosted.org/git/?p=lvm2.git;a=commitdiff;h=b01e9651b06a63623...
Commit:        b01e9651b06a6362339d4c3d5d8da43896dae50f
Parent:        8967776713e1be2d584bc8a9713eaaaf467d8ac7
Author:        Bryn M. Reeves 
AuthorDate:    Mon Aug 17 18:28:32 2015 +0100
Committer:     Bryn M. Reeves 
CommitterDate: Mon Aug 17 18:37:16 2015 +0100

dmsetup: make sure subcommand is initialised (Coverity)

---
 tools/dmsetup.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/tools/dmsetup.c b/tools/dmsetup.c
index dc002b0..8bcf4d5 100644
--- 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;