3.16.43-rc1 review patch. If anyone has any objections, please let me know.
------------------
From: Ralf Baechle <ralf@xxxxxxxxxxxxxx>
commit 640465bda58c7078725201be7430c31a349121e9 upstream.
This wasn't happening in all cases.
Signed-off-by: Ralf Baechle <ralf@xxxxxxxxxxxxxx>
Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
Cc: Arnd Bergmann <arnd@xxxxxxxx>
---
arch/mips/include/asm/uaccess.h | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
--- a/arch/mips/include/asm/uaccess.h
+++ b/arch/mips/include/asm/uaccess.h
@@ -302,7 +302,8 @@ do { \
__get_kernel_common((x), size, __gu_ptr); \
else \
__get_user_common((x), size, __gu_ptr); \
- } \
+ } else \
+ (x) = 0; \
\
__gu_err; \
})
@@ -317,6 +318,7 @@ do { \
" .insn \n" \
" .section .fixup,\"ax\" \n" \
"3: li %0, %4 \n" \
+ " move %1, $0 \n" \
" j 2b \n" \
" .previous \n" \
" .section __ex_table,\"a\" \n" \
@@ -631,6 +633,7 @@ do { \
" .insn \n" \
" .section .fixup,\"ax\" \n" \
"3: li %0, %4 \n" \
+ " move %1, $0 \n" \
" j 2b \n" \
" .previous \n" \
" .section __ex_table,\"a\" \n" \