Fix potential memory leak

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3313 42af7a65-404d-4744-a932-0658087f49c3

examples/nsh/nsh_fscmds.c

@@ -705,7 +705,7 @@ int cmd_losetup(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
 
   if (badarg)
     {
-      return ERROR;
+      goto errout_with_paths;
     }
 
   /* If this is not a tear down operation, then additional command line