/* * hdmi-codec.h - HDMI Codec driver API * * Copyright (C) 2014 Texas Instruments Incorporated - http://www.ti.com * * Author: Jyri Sarha * * 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. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. */ #ifndef __HDMI_CODEC_H__ #define __HDMI_CODEC_H__ #include #include #include #include /* * Protocol between ASoC cpu-dai and HDMI-encoder */ struct hdmi_codec_daifmt { enum { HDMI_I2S, HDMI_RIGHT_J, HDMI_LEFT_J, HDMI_DSP_A, HDMI_DSP_B, HDMI_AC97, HDMI_SPDIF, } fmt; int bit_clk_inv:1; int frame_clk_inv:1; int bit_clk_master:1; int frame_clk_master:1; }; /* * HDMI audio parameters */ struct hdmi_codec_params { struct hdmi_audio_infoframe cea; struct snd_aes_iec958 iec; int sample_rate; int sample_width; int channels; }; struct hdmi_codec_pdata; struct hdmi_codec_ops { /* * Called when ASoC starts an audio stream setup. * Optional */ int (*audio_startup)(struct device *dev, void *data); /* * Configures HDMI-encoder for audio stream. * Mandatory */ int (*hw_params)(struct device *dev, void *data, struct hdmi_codec_daifmt *fmt, struct hdmi_codec_params *hparms); /* * Shuts down the audio stream. * Mandatory */ void (*audio_shutdown)(struct device *dev, void *data); /* * Mute/unmute HDMI audio stream. * Optional */ int (*digital_mute)(struct device *dev, void *data, bool enable); /* * Provides EDID-Like-Data from connected HDMI device. * Optional */ int (*get_eld)(struct device *dev, void *data, uint8_t *buf, size_t len); }; /* HDMI codec initalization data */ struct hdmi_codec_pdata { const struct hdmi_codec_ops *ops; uint i2s:1; uint spdif:1; int max_i2s_channels; void *data; }; #define HDMI_CODEC_DRV_NAME "hdmi-audio-codec" #endif /* __HDMI_CODEC_H__ */ /td>
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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 /include/rdma
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 'include/rdma')