kobject: must_check fixes

Check all __must_check warnings in lib/kobject.c

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 8 insertions, 1 deletions

diff --git a/lib/kobject.c b/lib/kobject.c
index 8e7c71993487..1699eb9161f3 100644
--- a/lib/kobject.c
+++ b/lib/kobject.c
@@ -407,6 +407,7 @@ static struct kobj_type dir_ktype = {
 struct kobject *kobject_add_dir(struct kobject *parent, const char *name)
 {
         struct kobject *k;
+        int ret;
 
         if (!parent)
                 return NULL;
@@ -418,7 +419,13 @@ struct kobject *kobject_add_dir(struct kobject *parent, const char *name)
         k->parent = parent;
         k->ktype = &dir_ktype;
         kobject_set_name(k, name);
-        kobject_register(k);
+        ret = kobject_register(k);
+        if (ret < 0) {
+                printk(KERN_WARNING "kobject_add_dir: "
+                        "kobject_register error: %d\n", ret);
+                kobject_del(k);
+                return NULL;
+        }
 
         return k;
 }