From f19866e5cb04f8f007cb422132ea4611cdacc8e3 Mon Sep 17 00:00:00 2001 From: André Fabian Silva Delgado Date: Thu, 8 Oct 2015 08:28:26 -0300 Subject: Linux-libre 4.2.3-gnu --- arch/parisc/kernel/irq.c | 8 ++++++-- arch/parisc/kernel/syscall.S | 2 +- 2 files changed, 7 insertions(+), 3 deletions(-) (limited to 'arch/parisc') diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c index f3191db6e..c0eab24f6 100644 --- a/arch/parisc/kernel/irq.c +++ b/arch/parisc/kernel/irq.c @@ -507,8 +507,8 @@ void do_cpu_irq_mask(struct pt_regs *regs) struct pt_regs *old_regs; unsigned long eirr_val; int irq, cpu = smp_processor_id(); -#ifdef CONFIG_SMP struct irq_desc *desc; +#ifdef CONFIG_SMP cpumask_t dest; #endif @@ -521,8 +521,12 @@ void do_cpu_irq_mask(struct pt_regs *regs) goto set_out; irq = eirr_to_irq(eirr_val); -#ifdef CONFIG_SMP + /* Filter out spurious interrupts, mostly from serial port at bootup */ desc = irq_to_desc(irq); + if (unlikely(!desc->action)) + goto set_out; + +#ifdef CONFIG_SMP cpumask_copy(&dest, desc->irq_data.affinity); if (irqd_is_per_cpu(&desc->irq_data) && !cpumask_test_cpu(smp_processor_id(), &dest)) { diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S index 7ef22e338..0b8d26d3b 100644 --- a/arch/parisc/kernel/syscall.S +++ b/arch/parisc/kernel/syscall.S @@ -821,7 +821,7 @@ cas2_action: /* 64bit CAS */ #ifdef CONFIG_64BIT 19: ldd,ma 0(%sr3,%r26), %r29 - sub,= %r29, %r25, %r0 + sub,*= %r29, %r25, %r0 b,n cas2_end 20: std,ma %r24, 0(%sr3,%r26) copy %r0, %r28 -- cgit v1.2.3-54-g00ecf