depmod: Fix crash in previous commit if root is not set

[This fixes http://build.gnome.org/continuous/buildmaster/builds/2015/02/25/31/build/output.txt ]

The variable we're reading here is "root", not "optarg" which is only
valid inside the getopt call.

diff --git a/tools/depmod.c b/tools/depmod.c
index a4a7479..18aab5d 100644 (file)
--- a/tools/depmod.c
+++ b/tools/depmod.c
@@ -2484,7 +2484,7 @@ static int do_depmod(int argc, char *argv[])
        }
 
        if (root)
-               root = path_make_absolute_cwd(optarg);
+               root = path_make_absolute_cwd(root);
 
        cfg.dirnamelen = snprintf(cfg.dirname, PATH_MAX,
                                  "%s/lib/modules/%s",