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[SCSI] ses: add support for enclosure component hot removal

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Right at the moment, hot removal of a device within an enclosure does
nothing (because the intf_remove only copes with enclosure removal not
with component removal). Fix this by adding a function to remove the
component.  Also needed to fix the prototype of
enclosure_remove_device, since we know the device we've removed but
not the internal component number

Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
James Bottomley 2009-08-01 00:41:22 +00:00 • committed by James Bottomley
parent 163f52b6cf
commit 43d8eb9cfd
3 changed files with 41 additions and 16 deletions
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22
drivers/misc/enclosure.c
View file

@ -332,19 +332,25 @@ EXPORT_SYMBOL_GPL(enclosure_add_device);
* Returns zero on success or an error.
*
*/
int enclosure_remove_device(struct enclosure_device *edev, int component)
int enclosure_remove_device(struct enclosure_device *edev, struct device *dev)
{
struct enclosure_component *cdev;
int i;
if (!edev || component >= edev->components)
if (!edev || !dev)
return -EINVAL;
cdev = &edev->component[component];
device_del(&cdev->cdev);
put_device(cdev->dev);
cdev->dev = NULL;
return device_add(&cdev->cdev);
for (i = 0; i < edev->components; i++) {
cdev = &edev->component[i];
if (cdev->dev == dev) {
enclosure_remove_links(cdev);
device_del(&cdev->cdev);
put_device(dev);
cdev->dev = NULL;
return device_add(&cdev->cdev);
}
}
return -ENODEV;
}
EXPORT_SYMBOL_GPL(enclosure_remove_device);