diff options
Diffstat (limited to 'drivers/block/paride/pg.c')
| -rw-r--r-- | drivers/block/paride/pg.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/block/paride/pg.c b/drivers/block/paride/pg.c index c397b3ddba9b..bed29cb9e6d9 100644 --- a/drivers/block/paride/pg.c +++ b/drivers/block/paride/pg.c @@ -162,7 +162,7 @@ enum {D_PRT, D_PRO, D_UNI, D_MOD, D_SLV, D_DLY}; #include <linux/pg.h> #include <linux/device.h> #include <linux/sched.h> /* current, TASK_* */ -#include <linux/smp_lock.h> +#include <linux/mutex.h> #include <linux/jiffies.h> #include <asm/uaccess.h> @@ -193,6 +193,7 @@ module_param_array(drive3, int, NULL, 0); #define ATAPI_IDENTIFY 0x12 +static DEFINE_MUTEX(pg_mutex); static int pg_open(struct inode *inode, struct file *file); static int pg_release(struct inode *inode, struct file *file); static ssize_t pg_read(struct file *filp, char __user *buf, @@ -518,7 +519,7 @@ static int pg_open(struct inode *inode, struct file *file) struct pg *dev = &devices[unit]; int ret = 0; - lock_kernel(); + mutex_lock(&pg_mutex); if ((unit >= PG_UNITS) || (!dev->present)) { ret = -ENODEV; goto out; @@ -547,7 +548,7 @@ static int pg_open(struct inode *inode, struct file *file) file->private_data = dev; out: - unlock_kernel(); + mutex_unlock(&pg_mutex); return ret; } |