tree e2a6c1a93428c870561646558666e2a01d05a5fa
parent c7d2dc2a204fa37bdf607d4d062dfd14e392aaf1
author Boaz Harrosh <bharrosh@panasas.com> 1258397042 +0200
committer James Bottomley <James.Bottomley@suse.de> 1259949705 -0600

[SCSI] osduld: Ref-counting bug fix

If scsi has released the device (logout), and exofs has last
reference on the osduld_device it will be freed by
osd_uld_release() within the call to fput(). But this will
oops in cdev_release() which is called after the fops->release.
(cdev is embedded within osduld_device). __uld_get/put pair
makes sure we have a cdev for the duration of fput()

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>