X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?p=pandora-kernel.git;a=blobdiff_plain;f=arch%2Fcris%2Farch-v32%2Fdrivers%2Fmach-fs%2Fgpio.c;h=ee90d2659be76db461cd12043bffe842160420a9;hp=5ec8a7d4e7d78db9b1eca0a5e5461414f2c71bb8;hb=10f2a2b0f68abf39c06cf519cbc1740fa50f900b;hpb=aa9f56b66d278aba2f278c75761b7e19fbaca97a

diff --git a/arch/cris/arch-v32/drivers/mach-fs/gpio.c b/arch/cris/arch-v32/drivers/mach-fs/gpio.c
index 5ec8a7d4e7d7..ee90d2659be7 100644
--- a/arch/cris/arch-v32/drivers/mach-fs/gpio.c
+++ b/arch/cris/arch-v32/drivers/mach-fs/gpio.c
@@ -22,7 +22,7 @@
 #include <linux/init.h>
 #include <linux/interrupt.h>
 #include <linux/spinlock.h>
-#include <linux/smp_lock.h>
+#include <linux/mutex.h>
 
 #include <asm/etraxgpio.h>
 #include <hwregs/reg_map.h>
@@ -64,6 +64,7 @@ static int dp_cnt;
 #define DP(x)
 #endif
 
+static DEFINE_MUTEX(gpio_mutex);
 static char gpio_name[] = "etrax gpio";
 
 #if 0
@@ -429,7 +430,7 @@ gpio_open(struct inode *inode, struct file *filp)
 	if (!priv)
 		return -ENOMEM;
 
-	lock_kernel();
+	mutex_lock(&gpio_mutex);
 	memset(priv, 0, sizeof(*priv));
 
 	priv->minor = p;
@@ -450,7 +451,7 @@ gpio_open(struct inode *inode, struct file *filp)
 	alarmlist = priv;
 	spin_unlock_irq(&alarm_lock);
 
-	unlock_kernel();
+	mutex_unlock(&gpio_mutex);
 	return 0;
 }
 
@@ -708,9 +709,9 @@ static long gpio_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 {
        long ret;
 
-       lock_kernel();
+       mutex_lock(&gpio_mutex);
        ret = gpio_ioctl_unlocked(file, cmd, arg);
-       unlock_kernel();
+       mutex_unlock(&gpio_mutex);
 
        return ret;
 }
@@ -870,6 +871,7 @@ static const struct file_operations gpio_fops = {
 	.write		= gpio_write,
 	.open		= gpio_open,
 	.release	= gpio_release,
+	.llseek		= noop_llseek,
 };
 
 #ifdef CONFIG_ETRAX_VIRTUAL_GPIO