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Bluetooth: hci_bcm: Invalidate IRQ on request failure

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If devm_request_irq() fails, the driver bails out of bcm_request_irq()
but continues to ->setup the device (because the IRQ is optional).

The driver subsequently calls devm_free_irq(), enable_irq_wake() and
disable_irq_wake() on the IRQ even though requesting it failed.

Avoid by invalidating the IRQ on request failure.

Cc: Frédéric Danis <frederic.danis.oss@gmail.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Lukas Wunner 2018-01-10 16:32:10 +01:00 committed by Marcel Holtmann
parent f4cf6b7e3b
commit 4dc273306c
1 changed files with 3 additions and 1 deletions
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4
drivers/bluetooth/hci_bcm.c
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@ -216,8 +216,10 @@ static int bcm_request_irq(struct bcm_data *bcm)
bdev->irq_active_low ? IRQF_TRIGGER_FALLING :
IRQF_TRIGGER_RISING,
"host_wake", bdev);
if (err)
if (err) {
bdev->irq = err;
goto unlock;
}
device_init_wakeup(bdev->dev, true);