Add a devm action handler to properly clean up the irq_domain and
chained handler when the device is removed.
Fixes: f0bcd784e1b7 ("soc: fsl: qe: Add an interrupt controller for QUICC
Engine Ports")
Signed-off-by: Felix Gu <[email protected]>
---
drivers/soc/fsl/qe/qe_ports_ic.c | 21 +++++++++++++++------
1 file changed, 15 insertions(+), 6 deletions(-)
diff --git a/drivers/soc/fsl/qe/qe_ports_ic.c b/drivers/soc/fsl/qe/qe_ports_ic.c
index 8e2107e2cde5..5e3fae19f314 100644
--- a/drivers/soc/fsl/qe/qe_ports_ic.c
+++ b/drivers/soc/fsl/qe/qe_ports_ic.c
@@ -17,6 +17,7 @@
struct qepic_data {
void __iomem *reg;
struct irq_domain *host;
+ int irq;
};
static void qepic_mask(struct irq_data *d)
@@ -92,11 +93,18 @@ static const struct irq_domain_ops qepic_host_ops = {
.map = qepic_host_map,
};
+static void qepic_remove(void *res)
+{
+ struct qepic_data *data = res;
+
+ irq_set_chained_handler_and_data(data->irq, NULL, NULL);
+ irq_domain_remove(data->host);
+}
+
static int qepic_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct qepic_data *data;
- int irq;
data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
if (!data)
@@ -106,17 +114,18 @@ static int qepic_probe(struct platform_device *pdev)
if (IS_ERR(data->reg))
return PTR_ERR(data->reg);
- irq = platform_get_irq(pdev, 0);
- if (irq < 0)
- return irq;
+ data->irq = platform_get_irq(pdev, 0);
+ if (data->irq < 0)
+ return data->irq;
data->host = irq_domain_add_linear(dev->of_node, 32, &qepic_host_ops,
data);
if (!data->host)
return -ENODEV;
- irq_set_chained_handler_and_data(irq, qepic_cascade, data);
+ irq_set_chained_handler_and_data(data->irq, qepic_cascade, data);
+
+ return devm_add_action_or_reset(dev, qepic_remove, data);
- return 0;
}
static const struct of_device_id qepic_match[] = {
---
base-commit: a0ae2a256046c0c5d3778d1a194ff2e171f16e5f
change-id: 20260310-qe_ports_ic-ca4c98bd1c4f
Best regards,
--
Felix Gu <[email protected]>
