Input: fix the example of an input device driver

This patch fixes a wrong interrupt handler example given in the "Hello,
world!"-like input driver in Documentation/input/input-programming.txt.

Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.fi>
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

1 files changed, 2 insertions, 1 deletions

diff --git a/Documentation/input/input-programming.txt b/Documentation/input/input-programming.txt
index 81905e81585e..7f8b9d97bc47 100644
--- a/Documentation/input/input-programming.txt
+++ b/Documentation/input/input-programming.txt
@@ -20,10 +20,11 @@ pressed or released a BUTTON_IRQ happens. The driver could look like:
 
 static struct input_dev *button_dev;
 
-static void button_interrupt(int irq, void *dummy, struct pt_regs *fp)
+static irqreturn_t button_interrupt(int irq, void *dummy)
 {
         input_report_key(button_dev, BTN_0, inb(BUTTON_PORT) & 1);
         input_sync(button_dev);
+        return IRQ_HANDLED;
 }
 
 static int __init button_init(void)