b9130b776e
This is needed as otherwise we can get the following when dealing with buggy data in a pinmux driver for pinmux_search_function: Unable to handle kernel NULL pointer dereference at virtual address 00000000 ... PC is at strcmp+0xc/0x34 LR is at pinmux_get+0x350/0x8f4 ... As we need pctldev initialized to call ops->list_functions, let's initialize it before check_ops calls and pass the pctldev to the check_ops functions. Do this for both pinmux and pinconf check_ops functions. Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
36 lines
941 B
C
36 lines
941 B
C
/*
|
|
* Internal interface between the core pin control system and the
|
|
* pin config portions
|
|
*
|
|
* Copyright (C) 2011 ST-Ericsson SA
|
|
* Written on behalf of Linaro for ST-Ericsson
|
|
* Based on bits of regulator core, gpio core and clk core
|
|
*
|
|
* Author: Linus Walleij <linus.walleij@linaro.org>
|
|
*
|
|
* License terms: GNU General Public License (GPL) version 2
|
|
*/
|
|
|
|
#ifdef CONFIG_PINCONF
|
|
|
|
int pinconf_check_ops(struct pinctrl_dev *pctldev);
|
|
void pinconf_init_device_debugfs(struct dentry *devroot,
|
|
struct pinctrl_dev *pctldev);
|
|
int pin_config_get_for_pin(struct pinctrl_dev *pctldev, unsigned pin,
|
|
unsigned long *config);
|
|
int pin_config_set_for_pin(struct pinctrl_dev *pctldev, unsigned pin,
|
|
unsigned long config);
|
|
|
|
#else
|
|
|
|
static inline int pinconf_check_ops(struct pinctrl_dev *pctldev)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline void pinconf_init_device_debugfs(struct dentry *devroot,
|
|
struct pinctrl_dev *pctldev)
|
|
{
|
|
}
|
|
|
|
#endif
|