From: Samuel Holland <samuel@xxxxxxxxxxxx>
[ Upstream commit b5e8642ed95ff6ecc20cc6038fe831affa9d098c ]
The IRQ handler calls mod_delayed_work() on power->vbus_detect. However,
that work item is not initialized until after the IRQs are enabled. If
an IRQ is already pending when the driver is probed, the driver calls
mod_delayed_work() on an uninitialized work item, which causes an oops.
Fixes: bcfb7ae3f50b ("power: supply: axp20x_usb_power: Only poll while offline")
Signed-off-by: Samuel Holland <samuel@xxxxxxxxxxxx>
Signed-off-by: Sebastian Reichel <sebastian.reichel@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/power/supply/axp20x_usb_power.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/power/supply/axp20x_usb_power.c b/drivers/power/supply/axp20x_usb_power.c
index 70b28b699a80c..8933ae26c3d69 100644
--- a/drivers/power/supply/axp20x_usb_power.c
+++ b/drivers/power/supply/axp20x_usb_power.c
@@ -593,6 +593,7 @@ static int axp20x_usb_power_probe(struct platform_device *pdev)
power->axp20x_id = axp_data->axp20x_id;
power->regmap = axp20x->regmap;
power->num_irqs = axp_data->num_irq_names;
+ INIT_DELAYED_WORK(&power->vbus_detect, axp20x_usb_power_poll_vbus);
if (power->axp20x_id == AXP202_ID) {
/* Enable vbus valid checking */
@@ -645,7 +646,6 @@ static int axp20x_usb_power_probe(struct platform_device *pdev)
}
}
- INIT_DELAYED_WORK(&power->vbus_detect, axp20x_usb_power_poll_vbus);
if (axp20x_usb_vbus_needs_polling(power))
queue_delayed_work(system_power_efficient_wq, &power->vbus_detect, 0);
--
2.27.0
