[PATCH] NFS: remove unused check in nfs4_open_revalidate

Coverity spotted a superfluous error check in nfs4_open_revalidate().  Remove
it.

Coverity: #cid 847

Test plan:
Code inspection; another pass through Coverity.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 47c7e6e..7421bcb 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -1314,11 +1314,9 @@
 			case -EROFS:
 				lookup_instantiate_filp(nd, (struct dentry *)state, NULL);
 				return 1;
-			case -ENOENT:
-				if (dentry->d_inode == NULL)
-					return 1;
+			default:
+				goto out_drop;
 		}
-		goto out_drop;
 	}
 	if (state->inode == dentry->d_inode) {
 		nfs4_intent_set_file(nd, dentry, state);