diff options
Diffstat (limited to 'drivers/scsi/3w-xxxx.c')
| -rw-r--r-- | drivers/scsi/3w-xxxx.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/drivers/scsi/3w-xxxx.c b/drivers/scsi/3w-xxxx.c index 30d735ad35b5..081c864c11d2 100644 --- a/drivers/scsi/3w-xxxx.c +++ b/drivers/scsi/3w-xxxx.c @@ -199,7 +199,6 @@ #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> @@ -221,6 +220,7 @@ /* 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; @@ -900,10 +900,10 @@ static long tw_chrdev_ioctl(struct file *file, unsigned int cmd, unsigned long a 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; } @@ -1034,7 +1034,7 @@ out2: 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() */ @@ -1044,7 +1044,6 @@ static int tw_chrdev_open(struct inode *inode, struct file *file) { unsigned int minor_number; - cycle_kernel_lock(); dprintk(KERN_WARNING "3w-xxxx: tw_ioctl_open()\n"); minor_number = iminor(inode); |