livepatch: match return value to function signature

klp_initialized() should return bool but is actually returning
struct kobject * - convert it to a boolean explicitly.

Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Reviewed-by: Jiri Slaby <jslaby@suse.cz
Acked-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/kernel/livepatch/core.c b/kernel/livepatch/core.c
index 284e269..c5e631cd 100644
--- a/kernel/livepatch/core.c
+++ b/kernel/livepatch/core.c
@@ -128,7 +128,7 @@
 
 static bool klp_initialized(void)
 {
-	return klp_root_kobj;
+	return !!klp_root_kobj;
 }
 
 struct klp_find_arg {