diff options
Diffstat (limited to 'drivers/scsi/3w-sas.c')
| -rw-r--r-- | drivers/scsi/3w-sas.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/scsi/3w-sas.c b/drivers/scsi/3w-sas.c index f481e734aad4..7e5f2385e3e6 100644 --- a/drivers/scsi/3w-sas.c +++ b/drivers/scsi/3w-sas.c @@ -64,7 +64,6 @@ #include <linux/pci.h> #include <linux/time.h> #include <linux/mutex.h> -#include <linux/smp_lock.h> #include <linux/slab.h> #include <asm/io.h> #include <asm/irq.h> @@ -77,6 +76,7 @@ /* Globals */ #define TW_DRIVER_VERSION "3.26.02.000" +static DEFINE_MUTEX(twl_chrdev_mutex); static TW_Device_Extension *twl_device_extension_list[TW_MAX_SLOT]; static unsigned int twl_device_extension_count; static int twl_major = -1; @@ -764,7 +764,7 @@ static long twl_chrdev_ioctl(struct file *file, unsigned int cmd, unsigned long int retval = -EFAULT; void __user *argp = (void __user *)arg; - lock_kernel(); + mutex_lock(&twl_chrdev_mutex); /* Only let one of these through at a time */ if (mutex_lock_interruptible(&tw_dev->ioctl_lock)) { @@ -861,7 +861,7 @@ out3: out2: mutex_unlock(&tw_dev->ioctl_lock); out: - unlock_kernel(); + mutex_unlock(&twl_chrdev_mutex); return retval; } /* End twl_chrdev_ioctl() */ @@ -876,7 +876,6 @@ static int twl_chrdev_open(struct inode *inode, struct file *file) goto out; } - cycle_kernel_lock(); minor_number = iminor(inode); if (minor_number >= twl_device_extension_count) goto out; |