6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Rengarajan S <rengarajan.s@xxxxxxxxxxxxx>
commit 194f9f94a5169547d682e9bbcc5ae6d18a564735 upstream.
Resolve kernel panic caused by improper handling of IRQs while
accessing GPIO values. This is done by replacing generic_handle_irq with
handle_nested_irq.
Fixes: 1f4d8ae231f4 ("misc: microchip: pci1xxxx: Add gpio irq handler and irq helper functions irq_ack, irq_mask, irq_unmask and irq_set_type of irq_chip.")
Cc: stable <stable@xxxxxxxxxx>
Signed-off-by: Rengarajan S <rengarajan.s@xxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20241205133626.1483499-2-rengarajan.s@xxxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/misc/mchp_pci1xxxx/mchp_pci1xxxx_gpio.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/misc/mchp_pci1xxxx/mchp_pci1xxxx_gpio.c
+++ b/drivers/misc/mchp_pci1xxxx/mchp_pci1xxxx_gpio.c
@@ -277,7 +277,7 @@ static irqreturn_t pci1xxxx_gpio_irq_han
writel(BIT(bit), priv->reg_base + INTR_STATUS_OFFSET(gpiobank));
spin_unlock_irqrestore(&priv->lock, flags);
irq = irq_find_mapping(gc->irq.domain, (bit + (gpiobank * 32)));
- generic_handle_irq(irq);
+ handle_nested_irq(irq);
}
}
spin_lock_irqsave(&priv->lock, flags);
