From af5648c465c3a5ba66d5ec3263b50488d894d0b6 Mon Sep 17 00:00:00 2001
From: Hans Petter Selasky <hselasky@FreeBSD.org>
Date: Mon, 19 Oct 2015 12:00:52 +0000
Subject: [PATCH] Implement IS_ERR_OR_NULL() function.

Sponsored by:	Mellanox Technologies
---
 sys/ofed/include/linux/err.h | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/sys/ofed/include/linux/err.h b/sys/ofed/include/linux/err.h
index fe6b71d2a84b..a08712a2975d 100644
--- a/sys/ofed/include/linux/err.h
+++ b/sys/ofed/include/linux/err.h
@@ -2,7 +2,7 @@
  * Copyright (c) 2010 Isilon Systems, Inc.
  * Copyright (c) 2010 iX Systems, Inc.
  * Copyright (c) 2010 Panasas, Inc.
- * Copyright (c) 2013, 2014 Mellanox Technologies, Ltd.
+ * Copyright (c) 2013-2015 Mellanox Technologies, Ltd.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -52,6 +52,12 @@ IS_ERR(const void *ptr)
 	return IS_ERR_VALUE((unsigned long)ptr);
 }
 
+static inline long
+IS_ERR_OR_NULL(const void *ptr)
+{
+	return !ptr || IS_ERR_VALUE((unsigned long)ptr);
+}
+
 static inline void *
 ERR_CAST(void *ptr)
 {