* Stefan Bader <shbader@de.ibm.com>
*/
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/init.h> // for kernel parameters
#include <linux/kmod.h> // for requesting modules
#define PRINTK_HEADER "TAPE_CORE: "
static void __tape_do_irq (struct ccw_device *, unsigned long, struct irb *);
-static void tape_delayed_next_request(void * data);
+static void tape_delayed_next_request(struct work_struct *);
/*
* One list to contain all tape devices of all disciplines, so
return 0;
case -EBUSY:
request->status = TAPE_REQUEST_CANCEL;
- schedule_work(&device->tape_dnr);
+ schedule_delayed_work(&device->tape_dnr, 0);
return 0;
case -ENODEV:
DBF_EXCEPTION(2, "device gone, retry\n");
*device->modeset_byte = 0;
device->first_minor = -1;
atomic_set(&device->ref_count, 1);
- INIT_WORK(&device->tape_dnr, tape_delayed_next_request, device);
+ INIT_DELAYED_WORK(&device->tape_dnr, tape_delayed_next_request);
return device;
}
tape_generic_probe(struct ccw_device *cdev)
{
struct tape_device *device;
+ int ret;
device = tape_alloc_device();
if (IS_ERR(device))
return -ENODEV;
- PRINT_INFO("tape device %s found\n", cdev->dev.bus_id);
+ ccw_device_set_options(cdev, CCWDEV_DO_PATHGROUP);
+ ret = sysfs_create_group(&cdev->dev.kobj, &tape_attr_group);
+ if (ret) {
+ tape_put_device(device);
+ PRINT_ERR("probe failed for tape device %s\n", cdev->dev.bus_id);
+ return ret;
+ }
cdev->dev.driver_data = device;
+ cdev->handler = __tape_do_irq;
device->cdev = cdev;
device->cdev_id = busid_to_int(cdev->dev.bus_id);
- cdev->handler = __tape_do_irq;
-
- ccw_device_set_options(cdev, CCWDEV_DO_PATHGROUP);
- sysfs_create_group(&cdev->dev.kobj, &tape_attr_group);
-
- return 0;
+ PRINT_INFO("tape device %s found\n", cdev->dev.bus_id);
+ return ret;
}
static inline void
} else if (rc == -EBUSY) {
/* The common I/O subsystem is currently busy. Retry later. */
request->status = TAPE_REQUEST_QUEUED;
- schedule_work(&device->tape_dnr);
+ schedule_delayed_work(&device->tape_dnr, 0);
rc = 0;
} else {
/* Start failed. Remove request and indicate failure. */
}
static void
-tape_delayed_next_request(void *data)
+tape_delayed_next_request(struct work_struct *work)
{
- struct tape_device * device;
+ struct tape_device *device =
+ container_of(work, struct tape_device, tape_dnr.work);
- device = (struct tape_device *) data;
DBF_LH(6, "tape_delayed_next_request(%p)\n", device);
spin_lock_irq(get_ccwdev_lock(device->cdev));
__tape_start_next_request(device);