mmc/omap: Use disable_irq_nosync() from within irq handlers.

disable_irq() should wait for all running handlers to complete
before returning.  As such, if it's used to disable an interrupt
from that interrupt's handler it will deadlock.  This replaces
the dangerous instances with the _nosync() variant which doesn't
have this problem.

Signed-off-by: Ben Nizette <bn@niasdigital.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Pierre Ossman <pierre@ossman.eu>

diff --git a/drivers/mmc/host/omap.c b/drivers/mmc/host/omap.c
index bfa25c01c8722f17684520b1ab3adfee9bdef193..dceb5ee3bda068da5668b87783f9cd8339e9207f 100644 (file)
--- a/drivers/mmc/host/omap.c
+++ b/drivers/mmc/host/omap.c
@@ -822,7 +822,7 @@ static irqreturn_t mmc_omap_irq(int irq, void *dev_id)
                del_timer(&host->cmd_abort_timer);
                host->abort = 1;
                OMAP_MMC_WRITE(host, IE, 0);
-               disable_irq(host->irq);
+               disable_irq_nosync(host->irq);
                schedule_work(&host->cmd_abort_work);
                return IRQ_HANDLED;
        }