On unbind an irq might be pending which results in quad8_irq_handler()
calling counter_push_event() for a counter that is already unregistered.
This patch fixes that situation by passing the struct counter_device dev
to devm_request_irq() rather than the parent's so that the irq handler
is cleaned before the counter is unregistered.
Fixes: 7aa2ba0df651 ("counter: 104-quad-8: Add IRQ support for the ACCES 104-QUAD-8")
Reported-by: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx>
Cc: Syed Nayyar Waris <syednwaris@xxxxxxxxx>
Signed-off-by: William Breathitt Gray <vilhelm.gray@xxxxxxxxx>
---
drivers/counter/104-quad-8.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/counter/104-quad-8.c b/drivers/counter/104-quad-8.c
index 1fbb3923797c..a17e51d65aca 100644
--- a/drivers/counter/104-quad-8.c
+++ b/drivers/counter/104-quad-8.c
@@ -1188,8 +1188,8 @@ static int quad8_probe(struct device *dev, unsigned int id)
/* Enable all counters and enable interrupt function */
outb(QUAD8_CHAN_OP_ENABLE_INTERRUPT_FUNC, base[id] + QUAD8_REG_CHAN_OP);
- err = devm_request_irq(dev, irq[id], quad8_irq_handler, IRQF_SHARED,
- counter->name, counter);
+ err = devm_request_irq(&counter->dev, irq[id], quad8_irq_handler,
+ IRQF_SHARED, counter->name, counter);
if (err)
return err;
base-commit: 8f2cade5da97713e77ca5be576438f194b8873d7
--
2.33.1
