[PATCH] ecryptfs: check xattr operation support fix

  - ecryptfs_write_inode_size_to_metadata() error code was ignored.
  - i_op->setxattr() must be supported by lower fs because used below.

Signed-off-by: Monakhov Dmitriy <dmonakhov@openvz.org>
Acked-by: Michael Halcrow <mhalcrow@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c
index 0cfff4f..e62f3fc 100644
--- a/fs/ecryptfs/inode.c
+++ b/fs/ecryptfs/inode.c
@@ -168,9 +168,9 @@
 		goto out;
 	}
 	i_size_write(inode, 0);
-	ecryptfs_write_inode_size_to_metadata(lower_file, lower_inode, inode,
-					      ecryptfs_dentry,
-					      ECRYPTFS_LOWER_I_MUTEX_NOT_HELD);
+	rc = ecryptfs_write_inode_size_to_metadata(lower_file, lower_inode,
+			inode, ecryptfs_dentry,
+			ECRYPTFS_LOWER_I_MUTEX_NOT_HELD);
 	ecryptfs_inode_to_private(inode)->crypt_stat.flags |= ECRYPTFS_NEW_FILE;
 out:
 	return rc;