blob: 8ad783514ff868cbc447fb6ef231d8cc0fde7277 [file] [log] [blame]
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sun, 21 Aug 2016 23:33:47 -0400
Subject: sh64: failing __get_user() should zero
commit c6852389228df9fb3067f94f3b651de2a7921b36 upstream.
It could be done in exception-handling bits in __get_user_b() et.al.,
but the surgery involved would take more knowledge of sh64 details
than I have or _want_ to have.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
arch/sh/include/asm/uaccess_64.h | 1 +
1 file changed, 1 insertion(+)
--- a/arch/sh/include/asm/uaccess_64.h
+++ b/arch/sh/include/asm/uaccess_64.h
@@ -24,6 +24,7 @@
#define __get_user_size(x,ptr,size,retval) \
do { \
retval = 0; \
+ x = 0; \
switch (size) { \
case 1: \
retval = __get_user_asm_b((void *)&x, \