Commit 62df67a5 authored Mar 06, 2007 by Mark Lord Committed by Pierre Ossman Mar 06, 2007

sdhci: make isr tolerant of read errors



The interrupt is shared with another device, which resumes earlier than the
sdhci controller, and generates an interrupt.

The sdhci interrupt handler runs, sees 0xffffffff in its own device's
interrupt status, and tries to handle it..  The reason for the 0xffffffff
is that the device is still suspended, and *all* regs are reading back
0xffffffff.

Signed-off-by: Mark Lord <mlord@pobox.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>

parent cd9277c0

drivers/mmc/sdhci.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -993,7 +993,7 @@ static irqreturn_t sdhci_irq(int irq, void *dev_id)

		intmask = readl(host->ioaddr + SDHCI_INT_STATUS);

		if (!intmask) {
		if (!intmask \|\| intmask == 0xffffffff) {
		result = IRQ_NONE;
		goto out;
		}

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