[dm-devel] [patch] dm thin: check kmalloc in dm_deferred_set_create()

[Dan Carpenter <dan carpenter oracle com>]

We can simply return NULL here.  The callers already handle that.

Signed-off-by: Dan Carpenter <dan carpenter oracle com>

diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
index da0d5d1..fa7d21e 100644
--- a/drivers/md/dm-thin.c
+++ b/drivers/md/dm-thin.c
@@ -394,6 +394,8 @@ static struct dm_deferred_set *dm_deferred_set_create(void)
 	struct dm_deferred_set *ds;
 
 	ds = kmalloc(sizeof(*ds), GFP_KERNEL);
+	if (!ds)
+		return NULL;
 
 	spin_lock_init(&ds->lock);
 	ds->current_entry = 0;