The interrupt service routine is always invoked with disabled
interrupts.
Remove the _irqsave() from the locking functions in the interrupts
service routine/ pch_uart_interrupt().
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx>
---
drivers/tty/serial/pch_uart.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/drivers/tty/serial/pch_uart.c b/drivers/tty/serial/pch_uart.c
index 124eb816fca7e..6e259f4139153 100644
--- a/drivers/tty/serial/pch_uart.c
+++ b/drivers/tty/serial/pch_uart.c
@@ -1010,11 +1010,10 @@ static irqreturn_t pch_uart_interrupt(int irq, void *dev_id)
u8 lsr;
int ret = 0;
unsigned char iid;
- unsigned long flags;
int next = 1;
u8 msr;
- spin_lock_irqsave(&priv->lock, flags);
+ spin_lock(&priv->lock);
handled = 0;
while (next) {
iid = pch_uart_hal_get_iid(priv);
@@ -1074,7 +1073,7 @@ static irqreturn_t pch_uart_interrupt(int irq, void *dev_id)
handled |= (unsigned int)ret;
}
- spin_unlock_irqrestore(&priv->lock, flags);
+ spin_unlock(&priv->lock);
return IRQ_RETVAL(handled);
}
--
2.43.0
