free_irq() expects the same pointer that was passed to request_irq(),
otherwise the IRQ is not freed.
The issue was found using the following coccinelle script:
<smpl>
@r1@
type T;
T devid;
@@
request_irq(..., devid)
@r2@
type r1.T;
T devid;
position p;
@@
free_irq@p(..., devid)
@@
position p != r2.p;
@@
*free_irq@p(...)
</smpl>
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
return 0;
err_free_irq:
- free_irq(IRQ_IXP4XX_TIMER2, dev);
+ free_irq(IRQ_IXP4XX_TIMER2, (void *)dev->id);
err_free_device:
input_free_device(input_dev);
disable_irq(IRQ_IXP4XX_TIMER2);
ixp4xx_spkr_control(pin, 0);
- free_irq(IRQ_IXP4XX_TIMER2, dev);
+ free_irq(IRQ_IXP4XX_TIMER2, (void *)dev->id);
return 0;
}