diff --git a/sound/drivers/serial-u16550.c b/sound/drivers/serial-u16550.c
index 52afb4b..74028b2 100644
--- a/sound/drivers/serial-u16550.c
+++ b/sound/drivers/serial-u16550.c
@@ -292,7 +292,7 @@
  * Note that some devices need OUT2 to be set before they will generate
  * interrupts at all. (Possibly tied to an internal pull-up on CTS?)
  */
-static irqreturn_t snd_uart16550_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t snd_uart16550_interrupt(int irq, void *dev_id)
 {
 	snd_uart16550_t *uart;