From: FUJITA Tomonori Date: Mon, 31 Mar 2008 01:03:38 +0000 (+0900) Subject: [SCSI] bsg: takes a ref to struct device in fops->open X-Git-Tag: v2.6.26-rc1~1140^2~10 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d45ac4fa8f277e1ec5acfb67ce5d6406555760cf;p=pandora-kernel.git [SCSI] bsg: takes a ref to struct device in fops->open bsg_register_queue() takes a ref to struct device that a caller passes. For example, bsg takes a ref to the sdev_gendev for scsi devices. However, bsg doesn't inrease the refcount in fops->open. So while an application opens a bsg device, the scsi device that the bsg device holds can go away (bsg also takes a ref to a queue, but it doesn't prevent the device from going away). With this patch, bsg increases the refcount of struct device in fops->open and decreases it in fops->release. Signed-off-by: FUJITA Tomonori Signed-off-by: James Bottomley --- Reading git-diff-tree failed