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path: root/sound/soc/au1x/psc.h
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/*
 * Alchemy ALSA ASoC audio support.
 *
 * (c) 2007-2011 MSC Vertriebsges.m.b.H.,
 *	Manuel Lauss <manuel.lauss@gmail.com>
 *
 * 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 _AU1X_PCM_H
#define _AU1X_PCM_H

struct au1xpsc_audio_data {
	void __iomem *mmio;

	unsigned long cfg;
	unsigned long rate;

	struct snd_soc_dai_driver dai_drv;

	unsigned long pm[2];
	struct mutex lock;
	int dmaids[2];
};

/* easy access macros */
#define PSC_CTRL(x)	((x)->mmio + PSC_CTRL_OFFSET)
#define PSC_SEL(x)	((x)->mmio + PSC_SEL_OFFSET)
#define I2S_STAT(x)	((x)->mmio + PSC_I2SSTAT_OFFSET)
#define I2S_CFG(x)	((x)->mmio + PSC_I2SCFG_OFFSET)
#define I2S_PCR(x)	((x)->mmio + PSC_I2SPCR_OFFSET)
#define AC97_CFG(x)	((x)->mmio + PSC_AC97CFG_OFFSET)
#define AC97_CDC(x)	((x)->mmio + PSC_AC97CDC_OFFSET)
#define AC97_EVNT(x)	((x)->mmio + PSC_AC97EVNT_OFFSET)
#define AC97_PCR(x)	((x)->mmio + PSC_AC97PCR_OFFSET)
#define AC97_RST(x)	((x)->mmio + PSC_AC97RST_OFFSET)
#define AC97_STAT(x)	((x)->mmio + PSC_AC97STAT_OFFSET)

#endif
89f48834cefece7804d38fc5d85382edf77'>7ce7d89f48834cefece7804d38fc5d85382edf77 (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 'sound/soc/codecs/wm8996.h')