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| author | Julien Thierry <julien.thierry@arm.com> | 2018-09-11 10:13:11 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@armlinux.org.uk> | 2018-10-05 10:51:15 +0100 |
| commit | 18ea66bd6e7a95bdc598223d72757190916af28b (patch) | |
| tree | 77ee5088c00ddce928ba2894f7da9fa0b1a512d2 | |
| parent | 319508902600c2688e057750148487996396e9ca (diff) | |
| download | linux-18ea66bd6e7a95bdc598223d72757190916af28b.tar.gz linux-18ea66bd6e7a95bdc598223d72757190916af28b.tar.bz2 linux-18ea66bd6e7a95bdc598223d72757190916af28b.zip | |
ARM: 8793/1: signal: replace __put_user_error with __put_user
With Spectre-v1.1 mitigations, __put_user_error is pointless. In an attempt
to remove it, replace its references in frame setups with __put_user.
Signed-off-by: Julien Thierry <julien.thierry@arm.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
| -rw-r--r-- | arch/arm/kernel/signal.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/arm/kernel/signal.c b/arch/arm/kernel/signal.c index a5c5235ed39c..a8155fdf352d 100644 --- a/arch/arm/kernel/signal.c +++ b/arch/arm/kernel/signal.c @@ -336,7 +336,7 @@ setup_sigframe(struct sigframe __user *sf, struct pt_regs *regs, sigset_t *set) if (err == 0) err |= preserve_vfp_context(&aux->vfp); #endif - __put_user_error(0, &aux->end_magic, err); + err |= __put_user(0, &aux->end_magic); return err; } @@ -499,7 +499,7 @@ setup_frame(struct ksignal *ksig, sigset_t *set, struct pt_regs *regs) /* * Set uc.uc_flags to a value which sc.trap_no would never have. */ - __put_user_error(0x5ac3c35a, &frame->uc.uc_flags, err); + err = __put_user(0x5ac3c35a, &frame->uc.uc_flags); err |= setup_sigframe(frame, regs, set); if (err == 0) @@ -519,8 +519,8 @@ setup_rt_frame(struct ksignal *ksig, sigset_t *set, struct pt_regs *regs) err |= copy_siginfo_to_user(&frame->info, &ksig->info); - __put_user_error(0, &frame->sig.uc.uc_flags, err); - __put_user_error(NULL, &frame->sig.uc.uc_link, err); + err |= __put_user(0, &frame->sig.uc.uc_flags); + err |= __put_user(NULL, &frame->sig.uc.uc_link); err |= __save_altstack(&frame->sig.uc.uc_stack, regs->ARM_sp); err |= setup_sigframe(&frame->sig, regs, set); |