Commit 950312ce authored May 14, 2009 by Andrew Randrianasulu Committed by Ralf Baechle May 20, 2009

MIPS: IP32: Fix hang on shutdown in power button interrupt handler.



The hang was caused by the use of disable_irq() from the interrupt handler
itself.  Fixed by the use of disable_irq_nosync().  The issue was
triggered by:

    commit 3aa551c9
    Author: Thomas Gleixner <tglx@linutronix.de>
    Date:   Mon Mar 23 18:28:15 2009 +0100

        genirq: add threaded interrupt handler support

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

parent 279e677f

arch/mips/sgi-ip32/ip32-reset.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -145,7 +145,7 @@ static irqreturn_t ip32_rtc_int(int irq, void *dev_id)
		"%s: RTC IRQ without RTC_IRQF\n", __func__);
		}
		/* Wait until interrupt goes away */
		disable_irq(MACEISA_RTC_IRQ);
		disable_irq_nosync(MACEISA_RTC_IRQ);
		init_timer(&debounce_timer);
		debounce_timer.function = debounce;
		debounce_timer.expires = jiffies + 50;