[PATCH 4/7] mfd: hi6421-spmi-pmic: Use generic_handle_irq_safe().
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: 2022-01-27 11:33:30
Also in:
linux-i2c, linux-staging, linux-usb, lkml
Subsystem:
char and misc drivers, the rest · Maintainers:
Arnd Bergmann, Greg Kroah-Hartman, Linus Torvalds
generic_handle_irq() is invoked from a regular interrupt service routing. This handler will become a forced-threaded handler on PREEMPT_RT and will be invoked with enabled interrupts. The generic_handle_irq() must be invoked with disabled interrupts in order to avoid deadlocks. Instead of manually disabling interrupts before invoking use generic_handle_irq() which can be invoked with enabled and disabled interrupts. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> --- drivers/misc/hi6421v600-irq.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/misc/hi6421v600-irq.c b/drivers/misc/hi6421v600-irq.c
index 1c763796cf1fa..caa3de37698b0 100644
--- a/drivers/misc/hi6421v600-irq.c
+++ b/drivers/misc/hi6421v600-irq.c@@ -117,8 +117,8 @@ static irqreturn_t hi6421v600_irq_handler(int irq, void *__priv) * If both powerkey down and up IRQs are received, * handle them at the right order */ - generic_handle_irq(priv->irqs[POWERKEY_DOWN]); - generic_handle_irq(priv->irqs[POWERKEY_UP]); + generic_handle_irq_safe(priv->irqs[POWERKEY_DOWN]); + generic_handle_irq_safe(priv->irqs[POWERKEY_UP]); pending &= ~HISI_IRQ_POWERKEY_UP_DOWN; }
@@ -126,7 +126,7 @@ static irqreturn_t hi6421v600_irq_handler(int irq, void *__priv) continue; for_each_set_bit(offset, &pending, BITS_PER_BYTE) { - generic_handle_irq(priv->irqs[offset + i * BITS_PER_BYTE]); + generic_handle_irq_safe(priv->irqs[offset + i * BITS_PER_BYTE]); } }
--
2.34.1