/* * SuperH Video Output Unit (VOU) driver header * * Copyright (C) 2010, Guennadi Liakhovetski * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ #ifndef SH_VOU_H #define SH_VOU_H #include /* Bus flags */ #define SH_VOU_PCLK_FALLING (1 << 0) #define SH_VOU_HSYNC_LOW (1 << 1) #define SH_VOU_VSYNC_LOW (1 << 2) enum sh_vou_bus_fmt { SH_VOU_BUS_8BIT, SH_VOU_BUS_16BIT, SH_VOU_BUS_BT656, }; struct sh_vou_pdata { enum sh_vou_bus_fmt bus_fmt; int i2c_adap; struct i2c_board_info *board_info; unsigned long flags; }; #endif ain'>index : net-next.git
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authorTejun Heo <tj@kernel.org>2017-01-26 16:47:28 -0500
committerTejun Heo <tj@kernel.org>2017-01-26 16:47:28 -0500
commit07cd12945551b63ecb1a349d50a6d69d1d6feb4a (patch)
tree75f65eba7eac9277971082a2d5a4cf1370562c0c /net/batman-adv/gateway_client.h
parent7ce7d89f48834cefece7804d38fc5d85382edf77 (diff)
cgroup: don't online subsystems before cgroup_name/path() are operational
While refactoring cgroup creation, a5bca2152036 ("cgroup: factor out cgroup_create() out of cgroup_mkdir()") incorrectly onlined subsystems before the new cgroup is associated with it kernfs_node. This is fine for cgroup proper but cgroup_name/path() depend on the associated kernfs_node and if a subsystem makes the new cgroup_subsys_state visible, which they're allowed to after onlining, it can lead to NULL dereference. The current code performs cgroup creation and subsystem onlining in cgroup_create() and cgroup_mkdir() makes the cgroup and subsystems visible afterwards. There's no reason to online the subsystems early and we can simply drop cgroup_apply_control_enable() call from cgroup_create() so that the subsystems are onlined and made visible at the same time. Signed-off-by: Tejun Heo <tj@kernel.org> Reported-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> Fixes: a5bca2152036 ("cgroup: factor out cgroup_create() out of cgroup_mkdir()") Cc: stable@vger.kernel.org # v4.6+
Diffstat (limited to 'net/batman-adv/gateway_client.h')