xen/gntdev: don't leak memory from IOCTL_GNTDEV_MAP_GRANT_REF
authorDavid Vrabel <david.vrabel@citrix.com>
Wed, 24 Oct 2012 11:39:02 +0000 (12:39 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sat, 17 Nov 2012 21:15:54 +0000 (13:15 -0800)
commitccd37ab3230af7b32db1a139d9fe95918813bc23
treec03a1ecfa552199085823e42947547cc5b9e3e9b
parent8ddd4813010397b5aa3bf9f81de1994c415dfc10
xen/gntdev: don't leak memory from IOCTL_GNTDEV_MAP_GRANT_REF

commit a67baeb77375199bbd842fa308cb565164dd1f19 upstream.

map->kmap_ops allocated in gntdev_alloc_map() wasn't freed by
gntdev_put_map().

Add a gntdev_free_map() helper function to free everything allocated
by gntdev_alloc_map().

Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/xen/gntdev.c