diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h
index da8fbf5..bf3ae88 100644
--- a/fs/cifs/cifsproto.h
+++ b/fs/cifs/cifsproto.h
@@ -97,7 +97,7 @@
 
 extern int cifs_posix_open(char *full_path, struct inode **pinode,
 			   struct super_block *sb, int mode, int oflags,
-			   int *poplock, __u16 *pnetfid, int xid);
+			   __u32 *poplock, __u16 *pnetfid, int xid);
 extern void cifs_unix_basic_to_fattr(struct cifs_fattr *fattr,
 				     FILE_UNIX_BASIC_INFO *info,
 				     struct cifs_sb_info *cifs_sb);