Dan Williams ed01e50acd device-dax: fix cdev leak ... If device_add() fails, cleanup the cdev. Otherwise, we leak a kobj_map() with a stale device number. As Jason points out, there is a small possibility that userspace has opened and mapped the device in the time between cdev_add() and the device_add() failure. We need a new kill_dax_dev() helper to invalidate any established mappings. Fixes: ba09c01d2f ("dax: convert to the cdev api") Cc: <stable@vger.kernel.org> Reported-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Logan Gunthorpe <logang@deltatee.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2017-03-21 06:44:32 +01:00
..
Kconfig	nvdimm: make CONFIG_NVDIMM_DAX 'bool'	2016-10-27 16:16:21 -07:00
Makefile	/dev/dax, pmem: direct access to persistent memory	2016-05-20 22:02:53 -07:00
dax.c	device-dax: fix cdev leak	2017-03-21 06:44:32 +01:00
dax.h	dax: convert devm_create_dax_dev to PTR_ERR	2016-10-07 16:45:59 -07:00
pmem.c	Merge branch 'for-4.10/libnvdimm' into libnvdimm-for-next	2016-12-17 15:08:10 -08:00