From: Anand Moon <linux.amoon@xxxxxxxxx>
drop the spin_unlock/lock around uart_write_wakeup to protect
write wakeup for uart port.
Signed-off-by: Anand Moon <linux.amoon@xxxxxxxxx>
---
changes logs: drop the previous approch of spin_unlock_irqrestore/save
---
drivers/tty/serial/samsung.c | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)
diff --git a/drivers/tty/serial/samsung.c b/drivers/tty/serial/samsung.c
index d72cd73..0cb70a9 100644
--- a/drivers/tty/serial/samsung.c
+++ b/drivers/tty/serial/samsung.c
@@ -758,11 +758,8 @@ static irqreturn_t s3c24xx_serial_tx_chars(int irq, void *id)
goto out;
}
- if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS) {
- spin_unlock(&port->lock);
+ if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
uart_write_wakeup(port);
- spin_lock(&port->lock);
- }
if (uart_circ_empty(xmit))
s3c24xx_serial_stop_tx(port);
--
1.9.1
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