#include <linux/blkdev.h>
#include <asm/uaccess.h>
-static spinlock_t pcd_lock;
+static DEFINE_SPINLOCK(pcd_lock);
module_param(verbose, bool, 0644);
module_param(major, int, 0);
static int pcd_detect(void);
static void pcd_probe_capabilities(void);
static void do_pcd_read_drq(void);
-static void do_pcd_request(request_queue_t * q);
+static void do_pcd_request(struct request_queue * q);
static void do_pcd_read(void);
struct pcd_unit {
/* I/O request processing */
static struct request_queue *pcd_queue;
-static void do_pcd_request(request_queue_t * q)
+static void do_pcd_request(struct request_queue * q)
{
if (pcd_busy)
return;
int unit;
if (disable)
- return -1;
+ return -EINVAL;
pcd_init_units();
if (pcd_detect())
- return -1;
+ return -ENODEV;
/* get the atapi capabilities page */
pcd_probe_capabilities();
if (register_blkdev(major, name)) {
for (unit = 0, cd = pcd; unit < PCD_UNITS; unit++, cd++)
put_disk(cd->disk);
- return -1;
+ return -EBUSY;
}
pcd_queue = blk_init_queue(do_pcd_request, &pcd_lock);
unregister_blkdev(major, name);
for (unit = 0, cd = pcd; unit < PCD_UNITS; unit++, cd++)
put_disk(cd->disk);
- return -1;
+ return -ENOMEM;
}
for (unit = 0, cd = pcd; unit < PCD_UNITS; unit++, cd++) {