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MIPS: IP22: Fix hang 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 3aa551c9b4
    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>
wifi-calibration
Ralf Baechle 2009-05-16 12:23:45 +01:00
parent 950312ce22
commit 7e9e05cad9
1 changed files with 1 additions and 1 deletions
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2
arch/mips/sgi-ip22/ip22-reset.c
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@ -148,7 +148,7 @@ static irqreturn_t panel_int(int irq, void *dev_id)
if (sgint->istat1 & SGINT_ISTAT1_PWR) {
/* Wait until interrupt goes away */
disable_irq(SGI_PANEL_IRQ);
disable_irq_nosync(SGI_PANEL_IRQ);
init_timer(&debounce_timer);
debounce_timer.function = debounce;
debounce_timer.expires = jiffies + 5;