hpfs: Remove unessary cast

Avoid a pointless kmem_cache_alloc() return value cast in
fs/hpfs/super.c::hpfs_alloc_inode()
Signed-off-by: NFiro Yang <firogm@gmail.com>
Signed-off-by: NMikulas Patocka <mikulas@twibright.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

fs/hpfs/super.c

@@ -228,7 +228,7 @@ static struct kmem_cache * hpfs_inode_cachep;
 static struct inode *hpfs_alloc_inode(struct super_block *sb)
 {
 	struct hpfs_inode_info *ei;
-	ei = (struct hpfs_inode_info *)kmem_cache_alloc(hpfs_inode_cachep, GFP_NOFS);
+	ei = kmem_cache_alloc(hpfs_inode_cachep, GFP_NOFS);
 	if (!ei)
 		return NULL;
 	ei->vfs_inode.i_version = 1;