Merge tag 'v3.10.87' into update

[GitHub/mt8127/android_kernel_alcatel_ttab.git] / arch / arm64 / kernel / signal32.c

diff --git a/arch/arm64/kernel/signal32.c b/arch/arm64/kernel/signal32.c
index 36db9874c0b7e4cf46039e6b58980a90854701da..6cf01cef31fba9b115b69605a7e6dce486bc2cce 100644 (file)
--- a/arch/arm64/kernel/signal32.c
+++ b/arch/arm64/kernel/signal32.c
@@ -193,7 +193,8 @@ int copy_siginfo_to_user32(compat_siginfo_t __user *to, siginfo_t *from)
                 * Other callers might not initialize the si_lsb field,
                 * so check explicitely for the right codes here.
                 */
-               if (from->si_code == BUS_MCEERR_AR || from->si_code == BUS_MCEERR_AO)
+               if (from->si_signo == SIGBUS &&
+                   (from->si_code == BUS_MCEERR_AR || from->si_code == BUS_MCEERR_AO))
                        err |= __put_user(from->si_addr_lsb, &to->si_addr_lsb);
 #endif
                break;
@@ -228,8 +229,6 @@ int copy_siginfo_to_user32(compat_siginfo_t __user *to, siginfo_t *from)
 
 int copy_siginfo_from_user32(siginfo_t *to, compat_siginfo_t __user *from)
 {
-       memset(to, 0, sizeof *to);
-
        if (copy_from_user(to, from, __ARCH_SI_PREAMBLE_SIZE) ||
            copy_from_user(to->_sifields._pad,
                           from->_sifields._pad, SI_PAD_SIZE))