From b8872139338c835e9876b826a7d3b6cbe8e7a403 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bart.vanassche@sandisk.com>
Date: Mon, 9 Nov 2015 20:55:46 +0000
Subject: [PATCH] scst: Add a kmalloc_array() backport

git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6638 d57e44dd-8a1f-0410-8b47-8ef2f437770f
---
 scst/include/backport.h | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/scst/include/backport.h b/scst/include/backport.h
index d8ce44ef3..53a2f55ab 100644
--- a/scst/include/backport.h
+++ b/scst/include/backport.h
@@ -401,6 +401,15 @@ static inline void sg_set_page(struct scatterlist *sg, struct page *page,
 	(__flags), NULL, NULL)
 #endif
 
+#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 4, 0)
+static inline void *kmalloc_array(size_t n, size_t size, gfp_t flags)
+{
+	if (size != 0 && n > ULONG_MAX / size)
+		return NULL;
+	return kmalloc(n * size, flags);
+}
+#endif
+
 /* <linux/t10-pi.h> */
 
 #if LINUX_VERSION_CODE < KERNEL_VERSION(3, 18, 0)