A-Team_Digital_Solutions/android_kernel_motorola_sm6375
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mmc: omap_hsmmc: pass IRQF_ONESHOT to request_threaded_irq

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The flag of IRQF_ONESHOT should be passed to request_threaded_irq,
otherwise the following failure message should be dumped because
hardware handler is defined as NULL:

[    3.383483] genirq: Threaded irq requested with handler=NULL and
!ONESHOT for irq 368
[    3.392730] omap_hsmmc: probe of omap_hsmmc.0 failed with error -22

The patch fixes one kernel hang bug which is caused by mmc card
probe failure and root device can't be brought up.

Signed-off-by: Ming Lei <[email protected]>
Acked-by: Venkatraman S <[email protected]>
Cc: stable <[email protected]>
Signed-off-by: Chris Ball <[email protected]>
This commit is contained in:
Ming Lei 2012-05-17 10:27:12 +08:00 • committed by Chris Ball
commit db35f83ef4
1 changed files with 1 additions and 1 deletions
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2
drivers/mmc/host/omap_hsmmc.c
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@ -1981,7 +1981,7 @@ static int __devinit omap_hsmmc_probe(struct platform_device *pdev)
ret = request_threaded_irq(mmc_slot(host).card_detect_irq,
NULL,
omap_hsmmc_detect,
IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
mmc_hostname(mmc), host);
if (ret) {
dev_dbg(mmc_dev(host->mmc),