[XFS] remove some easy bhv_vnode_t instances

In various places we can just move a VFS_I call into the argument list of
called functions/macros instead of having a local bhv_vnode_t.

SGI-PV: 981498

SGI-Modid: xfs-linux-melb:xfs-kern:31776a

Signed-off-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
diff --git a/fs/xfs/linux-2.6/xfs_super.c b/fs/xfs/linux-2.6/xfs_super.c
index 71ac3a6..1ca593fb 100644
--- a/fs/xfs/linux-2.6/xfs_super.c
+++ b/fs/xfs/linux-2.6/xfs_super.c
@@ -980,12 +980,7 @@
 xfs_fs_alloc_inode(
 	struct super_block	*sb)
 {
-	bhv_vnode_t		*vp;
-
-	vp = kmem_zone_alloc(xfs_vnode_zone, KM_SLEEP);
-	if (unlikely(!vp))
-		return NULL;
-	return vp;
+	return kmem_zone_alloc(xfs_vnode_zone, KM_SLEEP);
 }
 
 STATIC void