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authorAl Viro <viro@zeniv.linux.org.uk>2016-08-21 23:33:47 -0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-09-24 10:07:44 +0200
commit9ce4d2bd802d99a39b424408c9633dac047c0b32 (patch)
tree17b7da9c8128565a57fcf2b5e26be345ff92a3ec
parent163a6508543598ce62c089df34866999dc169e5c (diff)
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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--arch/sh/include/asm/uaccess_64.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/sh/include/asm/uaccess_64.h b/arch/sh/include/asm/uaccess_64.h
index c01376c76b86..ca5073dd4596 100644
--- 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, \