module: split taint work out of check_modinfo_livepatch()

The work to taint the kernel due to a module should be split
up eventually. To aid with this, split up the tainting on
check_modinfo_livepatch().

This let's us bring more early checks together which do return
a value, and makes changes easier to read later where we stuff
all the work to do the taints in one single routine.
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>

kernel/module/main.c

@@ -1808,12 +1808,8 @@ static int check_modinfo_livepatch(struct module *mod, struct load_info *info)
 		/* Nothing more to do */
 		return 0;
 
-	if (set_livepatch_module(mod)) {
-		add_taint_module(mod, TAINT_LIVEPATCH, LOCKDEP_STILL_OK);
-		pr_notice_once("%s: tainting kernel with TAINT_LIVEPATCH\n",
-				mod->name);
+	if (set_livepatch_module(mod))
 		return 0;
-	}
 
 	pr_err("%s: module is marked as livepatch module, but livepatch support is disabled",
 	       mod->name);
@@ -1993,6 +1989,11 @@ static int check_modinfo(struct module *mod, struct load_info *info, int flags)
 	if (err)
 		return err;
 
+	if (is_livepatch_module(mod)) {
+		add_taint_module(mod, TAINT_LIVEPATCH, LOCKDEP_STILL_OK);
+		pr_notice_once("%s: tainting kernel with TAINT_LIVEPATCH\n",
+				mod->name);
+	}
 	module_license_taint_check(mod, get_modinfo(info, "license"));
 
 	if (get_modinfo(info, "test")) {