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Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

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Pull irq fix from Thomas Gleixner:
 "A single fix to prevent false positives in the spurious interrupt
  detector when more than a single demultiplex register is evaluated in
  the Qualcom irq combiner driver"

* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  irqchip/qcom: Fix check for spurious interrupts
This commit is contained in:
Linus Torvalds 2018-05-06 05:34:06 -10:00
commit 03b5f0c138
1 changed files with 2 additions and 2 deletions
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4
drivers/irqchip/qcom-irq-combiner.c
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@ -1,4 +1,4 @@
/* Copyright (c) 2015-2016, The Linux Foundation. All rights reserved.
/* Copyright (c) 2015-2018, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
@ -68,7 +68,7 @@ static void combiner_handle_irq(struct irq_desc *desc)
bit = readl_relaxed(combiner->regs[reg].addr);
status = bit & combiner->regs[reg].enabled;
if (!status)
if (bit && !status)
pr_warn_ratelimited("Unexpected IRQ on CPU%d: (%08x %08lx %p)\n",
smp_processor_id(), bit,
combiner->regs[reg].enabled,