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| author | James Bottomley <James.Bottomley@HansenPartnership.com> | 2009-08-01 00:41:22 +0000 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@suse.de> | 2009-08-22 17:52:13 -0500 |
| commit | 43d8eb9cfd0aea93be32181c64e18191b69c211c (patch) | |
| tree | 76725fe2ea080cb26c7503dbab8226181de1aa04 /drivers/scsi/ses.c | |
| parent | 163f52b6cf3a639df6a72c7937e0eb88b20f1ef3 (diff) | |
| download | linux-43d8eb9cfd0aea93be32181c64e18191b69c211c.tar.gz | |
[SCSI] ses: add support for enclosure component hot removal
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>
Diffstat (limited to 'drivers/scsi/ses.c')
| -rw-r--r-- | drivers/scsi/ses.c | 33 |
1 files changed, 26 insertions, 7 deletions
diff --git a/drivers/scsi/ses.c b/drivers/scsi/ses.c index e1b8c828f03a..be593c8525b5 100644 --- a/drivers/scsi/ses.c +++ b/drivers/scsi/ses.c @@ -616,18 +616,26 @@ static int ses_remove(struct device *dev) return 0; } -static void ses_intf_remove(struct device *cdev, - struct class_interface *intf) +static void ses_intf_remove_component(struct scsi_device *sdev) +{ + struct enclosure_device *edev, *prev = NULL; + + while ((edev = enclosure_find(&sdev->host->shost_gendev, prev)) != NULL) { + prev = edev; + if (!enclosure_remove_device(edev, &sdev->sdev_gendev)) + break; + } + if (edev) + put_device(&edev->edev); +} + +static void ses_intf_remove_enclosure(struct scsi_device *sdev) { - struct scsi_device *sdev = to_scsi_device(cdev->parent); struct enclosure_device *edev; struct ses_device *ses_dev; - if (!scsi_device_enclosure(sdev)) - return; - /* exact match to this enclosure */ - edev = enclosure_find(cdev->parent, NULL); + edev = enclosure_find(&sdev->sdev_gendev, NULL); if (!edev) return; @@ -645,6 +653,17 @@ static void ses_intf_remove(struct device *cdev, enclosure_unregister(edev); } +static void ses_intf_remove(struct device *cdev, + struct class_interface *intf) +{ + struct scsi_device *sdev = to_scsi_device(cdev->parent); + + if (!scsi_device_enclosure(sdev)) + ses_intf_remove_component(sdev); + else + ses_intf_remove_enclosure(sdev); +} + static struct class_interface ses_interface = { .add_dev = ses_intf_add, .remove_dev = ses_intf_remove, |