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Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs
[pandora-kernel.git]
/
arch
/
cris
/
arch-v32
/
drivers
/
mach-a3
/
gpio.c
diff --git
a/arch/cris/arch-v32/drivers/mach-a3/gpio.c
b/arch/cris/arch-v32/drivers/mach-a3/gpio.c
index
2dcd27a
..
c845831
100644
(file)
--- a/
arch/cris/arch-v32/drivers/mach-a3/gpio.c
+++ b/
arch/cris/arch-v32/drivers/mach-a3/gpio.c
@@
-23,7
+23,7
@@
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/spinlock.h>
#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>
#include <asm/etraxgpio.h>
#include <hwregs/reg_map.h>
@@
-66,6
+66,7
@@
static int dp_cnt;
#define DP(x)
#endif
#define DP(x)
#endif
+static DEFINE_MUTEX(gpio_mutex);
static char gpio_name[] = "etrax gpio";
#ifdef CONFIG_ETRAX_VIRTUAL_GPIO
static char gpio_name[] = "etrax gpio";
#ifdef CONFIG_ETRAX_VIRTUAL_GPIO
@@
-391,7
+392,7
@@
static int gpio_open(struct inode *inode, struct file *filp)
if (!priv)
return -ENOMEM;
if (!priv)
return -ENOMEM;
-
lock_kernel(
);
+
mutex_lock(&gpio_mutex
);
memset(priv, 0, sizeof(*priv));
priv->minor = p;
memset(priv, 0, sizeof(*priv));
priv->minor = p;
@@
-414,7
+415,7
@@
static int gpio_open(struct inode *inode, struct file *filp)
spin_unlock_irq(&gpio_lock);
}
spin_unlock_irq(&gpio_lock);
}
-
unlock_kernel(
);
+
mutex_unlock(&gpio_mutex
);
return 0;
}
return 0;
}
@@
-667,9
+668,9
@@
static long gpio_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
long ret;
{
long ret;
-
lock_kernel(
);
+
mutex_lock(&gpio_mutex
);
ret = gpio_ioctl_unlocked(file, cmd, arg);
ret = gpio_ioctl_unlocked(file, cmd, arg);
-
unlock_kernel(
);
+
mutex_unlock(&gpio_mutex
);
return ret;
}
return ret;
}
@@
-893,6
+894,7
@@
static const struct file_operations gpio_fops = {
.write = gpio_write,
.open = gpio_open,
.release = gpio_release,
.write = gpio_write,
.open = gpio_open,
.release = gpio_release,
+ .llseek = noop_llseek,
};
#ifdef CONFIG_ETRAX_VIRTUAL_GPIO
};
#ifdef CONFIG_ETRAX_VIRTUAL_GPIO