hvc/xen: Further s/MFN/GFN clean-up

[firefly-linux-kernel-4.4.55.git] / kernel / signal.c

diff --git a/kernel/signal.c b/kernel/signal.c
index 00524cf6c41206db2da7b75ec66ceb712db26810..0f6bbbe77b46c092d0de31e0c9eec8a0f17e6791 100644 (file)
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -2748,12 +2748,15 @@ int copy_siginfo_to_user(siginfo_t __user *to, const siginfo_t *from)
                 * Other callers might not initialize the si_lsb field,
                 * so check explicitly 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
 #ifdef SEGV_BNDERR
-               err |= __put_user(from->si_lower, &to->si_lower);
-               err |= __put_user(from->si_upper, &to->si_upper);
+               if (from->si_signo == SIGSEGV && from->si_code == SEGV_BNDERR) {
+                       err |= __put_user(from->si_lower, &to->si_lower);
+                       err |= __put_user(from->si_upper, &to->si_upper);
+               }
 #endif
                break;
        case __SI_CHLD: