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ide: switch ide_task_ioctl() to use REQ_TYPE_ATA_TASKFILE requests 

Based on the earlier work by Tejun Heo.

There should be no functionality changes caused by this patch.

Cc: Tejun Heo <htejun@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz 2008-01-25 22:17:11 +01:00
parent 813a0eb233
commit 14b89ef981
1 changed files with 15 additions and 14 deletions
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29
drivers/ide/ide-taskfile.c
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@ -806,28 +806,29 @@ abort:
return err;
}
static int ide_wait_cmd_task(ide_drive_t *drive, u8 *buf)
{
struct request rq;
ide_init_drive_cmd(&rq);
rq.cmd_type = REQ_TYPE_ATA_TASK;
rq.buffer = buf;
return ide_do_drive_cmd(drive, &rq, ide_wait);
}
int ide_task_ioctl (ide_drive_t *drive, unsigned int cmd, unsigned long arg)
{
void __user *p = (void __user *)arg;
int err = 0;
u8 args[7], *argbuf = args;
int argsize = 7;
u8 args[7];
ide_task_t task;
if (copy_from_user(args, p, 7))
return -EFAULT;
err = ide_wait_cmd_task(drive, argbuf);
if (copy_to_user(p, argbuf, argsize))
memset(&task, 0, sizeof(task));
memcpy(&task.tf_array[7], &args[1], 6);
task.tf.command = args[0];
task.tf_flags = IDE_TFLAG_OUT_TF | IDE_TFLAG_OUT_DEVICE;
err = ide_no_data_taskfile(drive, &task);
args[0] = task.tf.command;
memcpy(&args[1], &task.tf_array[7], 6);
if (copy_to_user(p, args, 7))
err = -EFAULT;
return err;
}