[PATCH v2] gpio: nuvoton: Fix sgpio irq handle error

From: Jim Liu
Date: Mon Apr 29 2024 - 02:07:54 EST


User use gpiomon to monitor input pin ,if triger the system will call trace and rcu stall.

The irq_handler uses generic_handle_domain_irq, so there is need to remove irq_find_mapping.

Fixes: c4f8457d17ce ("gpio: nuvoton: Add Nuvoton NPCM sgpio driver")
Signed-off-by: Jim Liu <JJLIU0@xxxxxxxxxxx>
---
Changes for v2:
- add more description
---
drivers/gpio/gpio-npcm-sgpio.c | 8 +++-----
1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/gpio/gpio-npcm-sgpio.c b/drivers/gpio/gpio-npcm-sgpio.c
index d31788b43abc..136838c25756 100644
--- a/drivers/gpio/gpio-npcm-sgpio.c
+++ b/drivers/gpio/gpio-npcm-sgpio.c
@@ -443,11 +443,9 @@ static void npcm_sgpio_irq_handler(struct irq_desc *desc)
const struct npcm_sgpio_bank *bank = &npcm_sgpio_banks[i];

reg = ioread8(bank_reg(gpio, bank, EVENT_STS));
- for_each_set_bit(j, &reg, 8) {
- girq = irq_find_mapping(gc->irq.domain,
- i * 8 + gpio->nout_sgpio + j);
- generic_handle_domain_irq(gc->irq.domain, girq);
- }
+ for_each_set_bit(j, &reg, 8)
+ generic_handle_domain_irq(gc->irq.domain,
+ i * 8 + gpio->nout_sgpio + j);
}

chained_irq_exit(ic, desc);
--
2.25.1