diff options
| -rw-r--r-- | arch/s390/kernel/compat_signal.c | 2 | ||||
| -rw-r--r-- | arch/s390/kernel/signal.c | 6 |
2 files changed, 3 insertions, 5 deletions
diff --git a/arch/s390/kernel/compat_signal.c b/arch/s390/kernel/compat_signal.c index 4ff6808456ea..fa2b3bc22f20 100644 --- a/arch/s390/kernel/compat_signal.c +++ b/arch/s390/kernel/compat_signal.c @@ -467,8 +467,6 @@ asmlinkage long sys32_rt_sigreturn(struct pt_regs *regs) if (err) goto badframe; - /* It is more difficult to avoid calling this function than to - call it and ignore errors. */ set_fs (KERNEL_DS); do_sigaltstack((stack_t __user *)&st, NULL, regs->gprs[15]); set_fs (old_fs); diff --git a/arch/s390/kernel/signal.c b/arch/s390/kernel/signal.c index 6e0110d71191..13592d00a10f 100644 --- a/arch/s390/kernel/signal.c +++ b/arch/s390/kernel/signal.c @@ -254,9 +254,9 @@ asmlinkage long sys_rt_sigreturn(struct pt_regs *regs) if (restore_sigregs(regs, &frame->uc.uc_mcontext)) goto badframe; - /* It is more difficult to avoid calling this function than to - call it and ignore errors. */ - do_sigaltstack(&frame->uc.uc_stack, NULL, regs->gprs[15]); + if (do_sigaltstack(&frame->uc.uc_stack, NULL, + regs->gprs[15]) == -EFAULT) + goto badframe; return regs->gprs[2]; badframe: |