From: Al Viro <v...@zeniv.linux.org.uk>

3.12-stable review patch.  If anyone has any objections, please let me know.

===============

commit fd2d2b191fe75825c4c7a6f12f3fef35aaed7dd7 upstream.

Signed-off-by: Al Viro <v...@zeniv.linux.org.uk>
Signed-off-by: Jiri Slaby <jsl...@suse.cz>
---
 arch/s390/include/asm/uaccess.h | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/s390/include/asm/uaccess.h b/arch/s390/include/asm/uaccess.h
index 9c33ed4e666f..b6017ace1515 100644
--- a/arch/s390/include/asm/uaccess.h
+++ b/arch/s390/include/asm/uaccess.h
@@ -164,28 +164,28 @@ extern int __put_user_bad(void) __attribute__((noreturn));
        __chk_user_ptr(ptr);                                    \
        switch (sizeof(*(ptr))) {                               \
        case 1: {                                               \
-               unsigned char __x;                              \
+               unsigned char __x = 0;                          \
                __gu_err = __get_user_fn(sizeof (*(ptr)),       \
                                         ptr, &__x);            \
                (x) = *(__force __typeof__(*(ptr)) *) &__x;     \
                break;                                          \
        };                                                      \
        case 2: {                                               \
-               unsigned short __x;                             \
+               unsigned short __x = 0;                         \
                __gu_err = __get_user_fn(sizeof (*(ptr)),       \
                                         ptr, &__x);            \
                (x) = *(__force __typeof__(*(ptr)) *) &__x;     \
                break;                                          \
        };                                                      \
        case 4: {                                               \
-               unsigned int __x;                               \
+               unsigned int __x = 0;                           \
                __gu_err = __get_user_fn(sizeof (*(ptr)),       \
                                         ptr, &__x);            \
                (x) = *(__force __typeof__(*(ptr)) *) &__x;     \
                break;                                          \
        };                                                      \
        case 8: {                                               \
-               unsigned long long __x;                         \
+               unsigned long long __x = 0;                     \
                __gu_err = __get_user_fn(sizeof (*(ptr)),       \
                                         ptr, &__x);            \
                (x) = *(__force __typeof__(*(ptr)) *) &__x;     \
-- 
2.10.0

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