From 83842ac1d65a3d1a35e91ad891929ac6f831db8f Mon Sep 17 00:00:00 2001
From: Imran Khan <kimran@codeaurora.org>
Date: Thu, 31 Mar 2016 18:01:06 +0530
Subject: [PATCH] lib: do_strncpy_from_user: Fix return error code for get_user
 failures

If byte wise copy fails here, we should return EFAULT. Returning a value
other than that would cause failure of some of the user-space test cases.

CRs-Fixed: 989314
Change-Id: I38ce12d44f25dc89bdd29e8abacd8777f0a8b9a1
Signed-off-by: Imran Khan <kimran@codeaurora.org>
---
 lib/strncpy_from_user.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/strncpy_from_user.c b/lib/strncpy_from_user.c
index 9d2683b521ae..2e03567e1e6b 100644
--- a/lib/strncpy_from_user.c
+++ b/lib/strncpy_from_user.c
@@ -44,7 +44,7 @@ static inline long do_strncpy_from_user(char *dst, const char __user *src, long
 
 		ret = __get_user(c, src + res);
 		if (ret)
-			return -ret;
+			return -EFAULT;
 		dst[res] = c;
 		if (!c)
 			return res;