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authorJames Bottomley <James.Bottomley@HansenPartnership.com>2009-08-01 04:41:22 +0400
committerJames Bottomley <James.Bottomley@suse.de>2009-08-23 02:52:13 +0400
commit43d8eb9cfd0aea93be32181c64e18191b69c211c (patch)
tree76725fe2ea080cb26c7503dbab8226181de1aa04 /drivers/misc/enclosure.c
parent163f52b6cf3a639df6a72c7937e0eb88b20f1ef3 (diff)
downloadlinux-43d8eb9cfd0aea93be32181c64e18191b69c211c.tar.xz
[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/misc/enclosure.c')
-rw-r--r--drivers/misc/enclosure.c22
1 files changed, 14 insertions, 8 deletions
diff --git a/drivers/misc/enclosure.c b/drivers/misc/enclosure.c
index 789d12128c24..850706a5e553 100644
--- a/drivers/misc/enclosure.c
+++ b/drivers/misc/enclosure.c
@@ -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);