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Revision 7ad6307ad6968ce25cecf209d4822d4c722be030 authored by Guenter Roeck on 07 March 2012, 11:58:55 UTC, committed by Guenter Roeck on 07 March 2012, 17:48:43 UTC 
hwmon: (zl6100) Maintain delay parameter in driver instance data
 
A global delay parameter has the side effect of being overwritten with 0 if a
single ZL2004 or ZL6105 is instantiated. If other chips supported by the same
driver are in the system, this will result in access errors for those chips.

To solve the problem, keep a per-instance copy of the delay parameter, and do
not change the original parameter.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Cc: stable@vger.kernel.org # 3.1+
Acked-by: Jean Delvare <khali@linux-fr.org>
1 parent 7cb3c44
Raw File
internal.h 
/* fs/ internal definitions
 *
 * Copyright (C) 2006 Red Hat, Inc. All Rights Reserved.
 * Written by David Howells (dhowells@redhat.com)
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version
 * 2 of the License, or (at your option) any later version.
 */

#include <linux/lglock.h>

struct super_block;
struct file_system_type;
struct linux_binprm;
struct path;
struct mount;

/*
 * block_dev.c
 */
#ifdef CONFIG_BLOCK
extern void __init bdev_cache_init(void);

extern int __sync_blockdev(struct block_device *bdev, int wait);

#else
static inline void bdev_cache_init(void)
{
}

static inline int __sync_blockdev(struct block_device *bdev, int wait)
{
	return 0;
}
#endif

/*
 * char_dev.c
 */
extern void __init chrdev_init(void);

/*
 * namespace.c
 */
extern int copy_mount_options(const void __user *, unsigned long *);
extern int copy_mount_string(const void __user *, char **);

extern struct vfsmount *lookup_mnt(struct path *);
extern int finish_automount(struct vfsmount *, struct path *);

extern void mnt_make_longterm(struct vfsmount *);
extern void mnt_make_shortterm(struct vfsmount *);
extern int sb_prepare_remount_readonly(struct super_block *);

extern void __init mnt_init(void);

DECLARE_BRLOCK(vfsmount_lock);


/*
 * fs_struct.c
 */
extern void chroot_fs_refs(struct path *, struct path *);

/*
 * file_table.c
 */
extern void file_sb_list_add(struct file *f, struct super_block *sb);
extern void file_sb_list_del(struct file *f);
extern void mark_files_ro(struct super_block *);
extern struct file *get_empty_filp(void);

/*
 * super.c
 */
extern int do_remount_sb(struct super_block *, int, void *, int);
extern bool grab_super_passive(struct super_block *sb);
extern struct dentry *mount_fs(struct file_system_type *,
			       int, const char *, void *);
extern struct super_block *user_get_super(dev_t);

/*
 * open.c
 */
struct nameidata;
extern struct file *nameidata_to_filp(struct nameidata *);
extern void release_open_intent(struct nameidata *);
struct open_flags {
	int open_flag;
	umode_t mode;
	int acc_mode;
	int intent;
};
extern struct file *do_filp_open(int dfd, const char *pathname,
		const struct open_flags *op, int lookup_flags);
extern struct file *do_file_open_root(struct dentry *, struct vfsmount *,
		const char *, const struct open_flags *, int lookup_flags);

extern long do_handle_open(int mountdirfd,
			   struct file_handle __user *ufh, int open_flag);

/*
 * inode.c
 */
extern spinlock_t inode_sb_list_lock;

/*
 * fs-writeback.c
 */
extern void inode_wb_list_del(struct inode *inode);

extern int get_nr_dirty_inodes(void);
extern void evict_inodes(struct super_block *);
extern int invalidate_inodes(struct super_block *, bool);

/*
 * dcache.c
 */
extern struct dentry *__d_alloc(struct super_block *, const struct qstr *);
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