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[S390] tape: cleanup reference counting

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Rename tape_get_device to tape_find_device and tape_get_device_reference
to tape_get_device. The old names didn't make too much sense.

Follow the get_device()/put_device() semantic and convert tape_put_device
to a void function.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Martin Schwidefsky
2009-12-07 12:52:03 +01:00
committed by Martin Schwidefsky
parent 1b52fff059
commit 8fd138c366
7 changed files with 50 additions and 51 deletions
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7
drivers/s390/char/tape_char.c
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@@ -286,9 +286,9 @@ tapechar_open (struct inode *inode, struct file *filp)
lock_kernel();
minor = iminor(filp->f_path.dentry->d_inode);
device = tape_get_device(minor / TAPE_MINORS_PER_DEV);
device = tape_find_device(minor / TAPE_MINORS_PER_DEV);
if (IS_ERR(device)) {
DBF_EVENT(3, "TCHAR:open: tape_get_device() failed\n");
DBF_EVENT(3, "TCHAR:open: tape_find_device() failed\n");
rc = PTR_ERR(device);
goto out;
}
@@ -340,7 +340,8 @@ tapechar_release(struct inode *inode, struct file *filp)
device->char_data.idal_buf = NULL;
}
tape_release(device);
filp->private_data = tape_put_device(device);
filp->private_data = NULL;
tape_put_device(device);
return 0;
}