X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fchar%2Fpc8736x_gpio.c;h=b930de50407aaac9536c9a74adb8b740ce3bae67;hb=7f268a2ba7c884a239713696238dd4207a57dd9a;hp=84e5a68635f12203c361cf837aab3f2bd4fdbca0;hpb=ae3e0218621db0590163b2d5c424ef1f340e3cc6;p=linux-2.6

diff --git a/drivers/char/pc8736x_gpio.c b/drivers/char/pc8736x_gpio.c
index 84e5a68635..b930de5040 100644
--- a/drivers/char/pc8736x_gpio.c
+++ b/drivers/char/pc8736x_gpio.c
@@ -20,6 +20,7 @@
 #include <linux/mutex.h>
 #include <linux/nsc_gpio.h>
 #include <linux/platform_device.h>
+#include <linux/smp_lock.h>
 #include <asm/uaccess.h>
 
 #define DEVNAME "pc8736x_gpio"
@@ -188,16 +189,6 @@ static void pc8736x_gpio_set(unsigned minor, int val)
 	pc8736x_gpio_shadow[port] = val;
 }
 
-static void pc8736x_gpio_set_high(unsigned index)
-{
-	pc8736x_gpio_set(index, 1);
-}
-
-static void pc8736x_gpio_set_low(unsigned index)
-{
-	pc8736x_gpio_set(index, 0);
-}
-
 static int pc8736x_gpio_current(unsigned minor)
 {
 	int port, bit;
@@ -227,6 +218,7 @@ static int pc8736x_gpio_open(struct inode *inode, struct file *file)
 	unsigned m = iminor(inode);
 	file->private_data = &pc8736x_gpio_ops;
 
+	cycle_kernel_lock();
 	dev_dbg(&pdev->dev, "open %d\n", m);
 
 	if (m >= PC8736X_GPIO_CT)