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[SCSI] osduld: Ref-counting bug fix
authorBoaz Harrosh <bharrosh@panasas.com>
Mon, 16 Nov 2009 18:44:02 +0000 (20:44 +0200)
committerJames Bottomley <James.Bottomley@suse.de>
Fri, 4 Dec 2009 18:01:45 +0000 (12:01 -0600)
commit89f5e1f2f13b1079b8d7ff7d3ade345b7ad7c009
treee2a6c1a93428c870561646558666e2a01d05a5fatree | snapshot
parentc7d2dc2a204fa37bdf607d4d062dfd14e392aaf1commit | diff
[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>
drivers/scsi/osd/osd_uld.c diff | blob | history
Full containers within linux kernel