From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sat, 20 Aug 2016 20:32:02 +0000 (-0400)
Subject: mn10300: failing __get_user() and get_user() should zero
X-Git-Tag: firefly_0821_release~176^2~4^2~28^2~28
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=6eb02b036f20232fb4184af39996a67eb9c2c67e;p=firefly-linux-kernel-4.4.55.git

mn10300: failing __get_user() and get_user() should zero

commit 43403eabf558d2800b429cd886e996fd555aa542 upstream.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/arch/mn10300/include/asm/uaccess.h b/arch/mn10300/include/asm/uaccess.h
index 537278746a15..4af43d9ba495 100644
--- a/arch/mn10300/include/asm/uaccess.h
+++ b/arch/mn10300/include/asm/uaccess.h
@@ -181,6 +181,7 @@ struct __large_struct { unsigned long buf[100]; };
 		"2:\n"						\
 		"	.section	.fixup,\"ax\"\n"	\
 		"3:\n\t"					\
+		"	mov		0,%1\n"			\
 		"	mov		%3,%0\n"		\
 		"	jmp		2b\n"			\
 		"	.previous\n"				\