#include <linux/chio.h> /* here are all the ioctls */
#include <linux/mutex.h>
#include <linux/idr.h>
+#include <linux/smp_lock.h>
+#include <linux/slab.h>
#include <scsi/scsi.h>
#include <scsi/scsi_cmnd.h>
MODULE_AUTHOR("Gerd Knorr <kraxel@bytesex.org>");
MODULE_LICENSE("GPL");
MODULE_ALIAS_CHARDEV_MAJOR(SCSI_CHANGER_MAJOR);
+MODULE_ALIAS_SCSI_DEVICE(TYPE_MEDIUM_CHANGER);
static int init = 1;
module_param(init, int, 0444);
result = scsi_execute_req(ch->device, cmd, direction, buffer,
buflength, &sshdr, timeout * HZ,
- MAX_RETRIES);
+ MAX_RETRIES, NULL);
dprintk("result: 0x%x\n",result);
if (driver_byte(result) & DRIVER_SENSE) {
/* look up the devices of the data transfer elements */
ch->dt = kmalloc(ch->counts[CHET_DT]*sizeof(struct scsi_device),
GFP_KERNEL);
+
+ if (!ch->dt) {
+ kfree(buffer);
+ return -ENOMEM;
+ }
+
for (elem = 0; elem < ch->counts[CHET_DT]; elem++) {
id = -1;
lun = 0;
scsi_changer *ch;
int minor = iminor(inode);
+ lock_kernel();
spin_lock(&ch_index_lock);
ch = idr_find(&ch_index_idr, minor);
if (NULL == ch || scsi_device_get(ch->device)) {
spin_unlock(&ch_index_lock);
+ unlock_kernel();
return -ENXIO;
}
spin_unlock(&ch_index_lock);
file->private_data = ch;
+ unlock_kernel();
return 0;
}
ch->minor = minor;
sprintf(ch->name,"ch%d",ch->minor);
- class_dev = device_create_drvdata(ch_sysfs_class, dev,
- MKDEV(SCSI_CHANGER_MAJOR, ch->minor),
- ch, "s%s", ch->name);
+ class_dev = device_create(ch_sysfs_class, dev,
+ MKDEV(SCSI_CHANGER_MAJOR, ch->minor), ch,
+ "s%s", ch->name);
if (IS_ERR(class_dev)) {
printk(KERN_WARNING "ch%d: device_create failed\n",
ch->minor);
if (init)
ch_init_elem(ch);
+ dev_set_drvdata(dev, ch);
sdev_printk(KERN_INFO, sd, "Attached scsi changer %s\n", ch->name);
return 0;