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firewire: ohci: flush MMIO writes in the interrupt handler
author
Clemens Ladisch
<clemens@ladisch.de>
Tue, 30 Nov 2010 07:24:19 +0000
(08:24 +0100)
committer
Stefan Richter
<stefanr@s5r6.in-berlin.de>
Mon, 13 Dec 2010 19:39:14 +0000
(20:39 +0100)
Make sure that interrupt event clear bit writes are executed before the
interrupt handler returns.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
drivers/firewire/ohci.c
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diff --git
a/drivers/firewire/ohci.c
b/drivers/firewire/ohci.c
index 3775364f1b5125e62c47c80e7934d236a49ea871..276324d741dfb8cf6e4fbbd027ae44c6f0ff70e0 100644
(file)
--- a/
drivers/firewire/ohci.c
+++ b/
drivers/firewire/ohci.c
@@
-1856,7
+1856,8
@@
static irqreturn_t irq_handler(int irq, void *data)
spin_lock(&ohci->lock);
update_bus_time(ohci);
spin_unlock(&ohci->lock);
- }
+ } else
+ flush_writes(ohci);
return IRQ_HANDLED;
}