cifs: Fix memory leak in smb2_set_ea()

This patch fixes a memory leak when doing a setxattr(2) in SMB2+.
Signed-off-by: Paulo Alcantara <palcantara@suse.de>
Cc: stable@vger.kernel.org
Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Aurelien Aptel <aaptel@suse.com>

fs/cifs/smb2ops.c

@@ -856,6 +856,8 @@ smb2_set_ea(const unsigned int xid, struct cifs_tcon *tcon,
 
 	rc = SMB2_set_ea(xid, tcon, fid.persistent_fid, fid.volatile_fid, ea,
 			 len);
+	kfree(ea);
+
 	SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid);
 
 	return rc;