#include <linux/module.h>
#include <linux/reboot.h>
-#include <linux/smp_lock.h>
#include <linux/spinlock.h>
#include <linux/interrupt.h>
#include <linux/moduleparam.h>
/* Globals */
#define TW_DRIVER_VERSION "1.26.02.003"
+static DEFINE_MUTEX(tw_mutex);
static TW_Device_Extension *tw_device_extension_list[TW_MAX_SLOT];
static int tw_device_extension_count = 0;
static int twe_major = -1;
dprintk(KERN_WARNING "3w-xxxx: tw_chrdev_ioctl()\n");
- lock_kernel();
+ mutex_lock(&tw_mutex);
/* Only let one of these through at a time */
if (mutex_lock_interruptible(&tw_dev->ioctl_lock)) {
- unlock_kernel();
+ mutex_unlock(&tw_mutex);
return -EINTR;
}
dma_free_coherent(&tw_dev->tw_pci_dev->dev, data_buffer_length_adjusted+sizeof(TW_New_Ioctl) - 1, cpu_addr, dma_handle);
out:
mutex_unlock(&tw_dev->ioctl_lock);
- unlock_kernel();
+ mutex_unlock(&tw_mutex);
return retval;
} /* End tw_chrdev_ioctl() */
{
unsigned int minor_number;
- cycle_kernel_lock();
dprintk(KERN_WARNING "3w-xxxx: tw_ioctl_open()\n");
minor_number = iminor(inode);
.owner = THIS_MODULE,
.unlocked_ioctl = tw_chrdev_ioctl,
.open = tw_chrdev_open,
- .release = NULL
+ .release = NULL,
+ .llseek = noop_llseek,
};
/* This function will free up device extension resources */