[PATCH 34/40] um: Don't restore current->blocked on error

From: Matt Fleming <hidden>
Date: 2012-02-14 11:45:53
Also in: linux-um, lkml
Reply to: Matt Fleming, 2012-02-14

From: Matt Fleming <redacted>

If we fail to setup the signal stack frame then we don't need to
restore current->blocked because it is not modified by
setup_signal_stack_*.

Acked-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Richard Weinberger <richard@nod.at>
Tested-by: Richard Weinberger <richard@nod.at>
Cc: <redacted>
Signed-off-by: Matt Fleming <redacted>
---
 arch/um/kernel/signal.c |    8 ++------
 1 files changed, 2 insertions(+), 6 deletions(-)

diff --git a/arch/um/kernel/signal.c b/arch/um/kernel/signal.c
index e8b889d..8382e0b 100644
--- a/arch/um/kernel/signal.c
+++ b/arch/um/kernel/signal.c

@@ -65,13 +65,9 @@ static int handle_signal(struct pt_regs *regs, unsigned long signr,
 #endif
 		err = setup_signal_stack_si(sp, signr, ka, regs, info, oldset);
 
-	if (err) {
-		spin_lock_irq(&current->sighand->siglock);
-		current->blocked = *oldset;
-		recalc_sigpending();
-		spin_unlock_irq(&current->sighand->siglock);
+	if (err)
 		force_sigsegv(signr, current);
-	} else {
+	else {
 		spin_lock_irq(&current->sighand->siglock);
 		sigorsets(&current->blocked, &current->blocked,
 			  &ka->sa.sa_mask);

-- 
1.7.4.4

Matt Fleming · 2012-02-14
[PATCH 02/40] arm: Use set_current_blocked() and block_sigmask() · Matt Fleming · 2012-02-14
[PATCH 01/40] alpha: Use set_current_blocked() and block_sigmask() · Matt Fleming · 2012-02-14
[PATCH 03/40] avr32: Don't mask signals in the error path · Matt Fleming · 2012-02-14
[PATCH 04/40] avr32: use set_current_blocked() in handle_signal/sys_rt_sigreturn · Matt Fleming · 2012-02-14
[PATCH 05/40] avr32: Use block_sigmask() · Matt Fleming · 2012-02-14
[PATCH 06/40] blackfin: Use set_current_blocked() and block_sigmask() · Matt Fleming · 2012-02-14
Re: [PATCH 06/40] blackfin: Use set_current_blocked() and block_sigmask() · Bob Liu · 2012-02-16
[PATCH 07/40] C6X: Use set_current_blocked() and block_sigmask() · Matt Fleming · 2012-02-14
[PATCH 09/40] frv: Use set_current_blocked() and block_sigmask() · Matt Fleming · 2012-02-14
[PATCH 10/40] h8300: Use set_current_blocked() and block_sigmask() · Matt Fleming · 2012-02-14
[PATCH 13/40] m32r: Use set_current_blocked() and block_sigmask() · Matt Fleming · 2012-02-14
[PATCH 14/40] m68k: Use set_current_blocked() and block_sigmask() · Matt Fleming · 2012-02-14
[PATCH 15/40] microblaze: Don't reimplement force_sigsegv() · Matt Fleming · 2012-02-14
[PATCH 17/40] microblaze: Fix signal masking · Matt Fleming · 2012-02-14
[PATCH 19/40] MIPS: Use set_current_blocked() and block_sigmask() · Matt Fleming · 2012-02-14
[PATCH 20/40] mn10300: Use set_current_blocked() and block_sigmask() · Matt Fleming · 2012-02-14
Re: [PATCH 20/40] mn10300: Use set_current_blocked() and block_sigmask() · David Howells · 2012-02-14
Re: [PATCH 20/40] mn10300: Use set_current_blocked() and block_sigmask() · Oleg Nesterov · 2012-02-14
Re: [PATCH 20/40] mn10300: Use set_current_blocked() and block_sigmask() · David Howells · 2012-02-14
Re: [PATCH 20/40] mn10300: Use set_current_blocked() and block_sigmask() · Oleg Nesterov · 2012-02-14
Re: [PATCH 20/40] mn10300: Use set_current_blocked() and block_sigmask() · Matt Fleming · 2012-02-14
Re: [PATCH 20/40] mn10300: Use set_current_blocked() and block_sigmask() · David Howells · 2012-02-14
Re: [PATCH 20/40] mn10300: Use set_current_blocked() and block_sigmask() · Matt Fleming · 2012-02-15
[PATCH 21/40] OpenRISC: Don't reimplement force_sigsegv() · Matt Fleming · 2012-02-14
Re: [PATCH 21/40] OpenRISC: Don't reimplement force_sigsegv() · Jonas Bonn · 2012-02-15
Re: [PATCH 21/40] OpenRISC: Don't reimplement force_sigsegv() · Matt Fleming · 2012-02-15
Re: [PATCH 21/40] OpenRISC: Don't reimplement force_sigsegv() · Jonas Bonn · 2012-02-15
[PATCH 22/40] OpenRISC: No need to reset handler if SA_ONESHOT · Matt Fleming · 2012-02-14
[PATCH 26/40] powerpc: Use set_current_blocked() and block_sigmask() · Matt Fleming · 2012-02-14
[PATCH 25/40] parisc: Use set_current_blocked() and block_sigmask() · Matt Fleming · 2012-02-14
Re: [PATCH 25/40] parisc: Use set_current_blocked() and block_sigmask() · Kyle McMartin · 2012-04-06
[PATCH 28/40] score: Don't mask signals if we fail to setup signal stack · Matt Fleming · 2012-02-14
[PATCH 29/40] score: Use set_current_blocked() and block_sigmask() · Matt Fleming · 2012-02-14
[PATCH 32/40] sparc: Use block_sigmask() · Matt Fleming · 2012-02-14
Re: [PATCH 32/40] sparc: Use block_sigmask() · David Miller · 2012-02-15
[PATCH 37/40] xtensa: Don't reimplement force_sigsegv() · Matt Fleming · 2012-02-14
[PATCH 36/40] unicore32: Use block_sigmask() · Matt Fleming · 2012-02-14
[PATCH 40/40] xtensa: Use set_current_blocked() and block_sigmask() · Matt Fleming · 2012-02-14
[PATCH 39/40] xtensa: Don't mask signals if we fail to setup signal stack · Matt Fleming · 2012-02-14
[PATCH 38/40] xtensa: No need to reset handler if SA_ONESHOT · Matt Fleming · 2012-02-14
[PATCH 35/40] um: Use set_current_blocked() and block_sigmask() · Matt Fleming · 2012-02-14
[PATCH 34/40] um: Don't restore current->blocked on error · Matt Fleming · 2012-02-14
[PATCH 33/40] tile: Use set_current_blocked() and block_sigmask() · Matt Fleming · 2012-02-14
[PATCH 31/40] sh: Use set_current_blocked() and block_sigmask() · Matt Fleming · 2012-02-14
[PATCH 30/40] sh: No need to reset handler if SA_ONESHOT · Matt Fleming · 2012-02-14
[PATCH 27/40] [S390] Use block_sigmask() · Matt Fleming · 2012-02-14
[PATCH 24/40] OpenRISC: Use set_current_blocked() and block_sigmask() · Matt Fleming · 2012-02-14
[PATCH 23/40] OpenRISC: Don't mask signals if we fail to setup signal stack · Matt Fleming · 2012-02-14
[PATCH 18/40] microblaze: Use set_current_blocked() and block_sigmask() · Matt Fleming · 2012-02-14
[PATCH 16/40] microblaze: No need to reset handler if SA_ONESHOT · Matt Fleming · 2012-02-14
[PATCH 12/40] ia64: Use set_current_blocked() and block_sigmask() · Matt Fleming · 2012-02-14
[PATCH 11/40] Hexagon: Use set_current_blocked() and block_sigmask() · Matt Fleming · 2012-02-14
[PATCH 08/40] cris: Use set_current_blocked() and block_sigmask() · Matt Fleming · 2012-02-14
Re: [PATCH 08/40] cris: Use set_current_blocked() and block_sigmask() · Jesper Nilsson · 2012-02-15
Mark Salter · 2012-02-14
Matt Fleming · 2012-02-14
Mark Salter · 2012-02-14
Matt Fleming · 2012-02-14
Oleg Nesterov · 2012-02-14
Matt Fleming · 2012-02-15
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