#include <linux/devfs_fs_kernel.h>
#include <linux/cdev.h>
#include <linux/delay.h>
+#include <linux/mutex.h>
#include <asm/uaccess.h>
#include <asm/dma.h>
#define to_scsi_tape(obj) container_of(obj, struct scsi_tape, kref)
-static DECLARE_MUTEX(st_ref_sem);
+static DEFINE_MUTEX(st_ref_mutex);
\f
#include "osst_detect.h"
{
struct scsi_tape *STp = NULL;
- down(&st_ref_sem);
+ mutex_lock(&st_ref_mutex);
write_lock(&st_dev_arr_lock);
if (dev < st_dev_max && scsi_tapes != NULL)
STp = NULL;
out:
write_unlock(&st_dev_arr_lock);
- up(&st_ref_sem);
+ mutex_unlock(&st_ref_mutex);
return STp;
}
{
struct scsi_device *sdev = STp->device;
- down(&st_ref_sem);
+ mutex_lock(&st_ref_mutex);
kref_put(&STp->kref, scsi_tape_release);
scsi_device_put(sdev);
- up(&st_ref_sem);
+ mutex_unlock(&st_ref_mutex);
}
struct st_reject_data {
}
}
- down(&st_ref_sem);
+ mutex_lock(&st_ref_mutex);
kref_put(&tpnt->kref, scsi_tape_release);
- up(&st_ref_sem);
+ mutex_unlock(&st_ref_mutex);
return 0;
}
}
* scsi_tape_release - Called to free the Scsi_Tape structure
* @kref: pointer to embedded kref
*
- * st_ref_sem must be held entering this routine. Because it is
+ * st_ref_mutex must be held entering this routine. Because it is
* called on last put, you should always use the scsi_tape_get()
* scsi_tape_put() helpers which manipulate the semaphore directly
* and never do a direct kref_put().