From 8a83780a187ba1961380814eaf9c503043345d12 Mon Sep 17 00:00:00 2001
From: Ian Wisbon <ian.wisbon@timesys.com>
Date: Mon, 14 Feb 2011 16:41:03 -0500
Subject: Digi Release Code from del-5.6/main

---
 fs/proc/kcore.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

(limited to 'fs/proc/kcore.c')

diff --git a/fs/proc/kcore.c b/fs/proc/kcore.c
index 59b43a068872..5fd7d2b3da82 100644
--- a/fs/proc/kcore.c
+++ b/fs/proc/kcore.c
@@ -361,7 +361,13 @@ read_kcore(struct file *file, char __user *buffer, size_t buflen, loff_t *fpos)
 				/* don't dump ioremap'd stuff! (TA) */
 				if (m->flags & VM_IOREMAP)
 					continue;
-				memcpy(elf_buf + (vmstart - start),
+				/*
+				 * we may access memory holes, then use
+				 * ex_table. checking return value just for
+				 * avoid warnings.
+				 */
+				vmsize = __copy_from_user_inatomic(
+					elf_buf + (vmstart - start),
 					(char *)vmstart, vmsize);
 			}
 			read_unlock(&vmlist_lock);
-- 
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