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These changes are a raw update to a vanilla kernel 4.1.10, with the
[kvmfornfv.git]
/
kernel
/
drivers
/
pinctrl
/
pinctrl-at91.c
diff --git
a/kernel/drivers/pinctrl/pinctrl-at91.c
b/kernel/drivers/pinctrl/pinctrl-at91.c
index
2f797cb
..
7747814
100644
(file)
--- a/
kernel/drivers/pinctrl/pinctrl-at91.c
+++ b/
kernel/drivers/pinctrl/pinctrl-at91.c
@@
-320,6
+320,9
@@
static const struct pinctrl_ops at91_pctrl_ops = {
static void __iomem *pin_to_controller(struct at91_pinctrl *info,
unsigned int bank)
{
static void __iomem *pin_to_controller(struct at91_pinctrl *info,
unsigned int bank)
{
+ if (!gpio_chips[bank])
+ return NULL;
+
return gpio_chips[bank]->regbase;
}
return gpio_chips[bank]->regbase;
}
@@
-729,6
+732,10
@@
static int at91_pmx_set(struct pinctrl_dev *pctldev, unsigned selector,
pin = &pins_conf[i];
at91_pin_dbg(info->dev, pin);
pio = pin_to_controller(info, pin->bank);
pin = &pins_conf[i];
at91_pin_dbg(info->dev, pin);
pio = pin_to_controller(info, pin->bank);
+
+ if (!pio)
+ continue;
+
mask = pin_to_mask(pin->pin);
at91_mux_disable_interrupt(pio, mask);
switch (pin->mux) {
mask = pin_to_mask(pin->pin);
at91_mux_disable_interrupt(pio, mask);
switch (pin->mux) {
@@
-848,6
+855,10
@@
static int at91_pinconf_get(struct pinctrl_dev *pctldev,
*config = 0;
dev_dbg(info->dev, "%s:%d, pin_id=%d", __func__, __LINE__, pin_id);
pio = pin_to_controller(info, pin_to_bank(pin_id));
*config = 0;
dev_dbg(info->dev, "%s:%d, pin_id=%d", __func__, __LINE__, pin_id);
pio = pin_to_controller(info, pin_to_bank(pin_id));
+
+ if (!pio)
+ return -EINVAL;
+
pin = pin_id % MAX_NB_GPIO_PER_BANK;
if (at91_mux_get_multidrive(pio, pin))
pin = pin_id % MAX_NB_GPIO_PER_BANK;
if (at91_mux_get_multidrive(pio, pin))
@@
-889,6
+900,10
@@
static int at91_pinconf_set(struct pinctrl_dev *pctldev,
"%s:%d, pin_id=%d, config=0x%lx",
__func__, __LINE__, pin_id, config);
pio = pin_to_controller(info, pin_to_bank(pin_id));
"%s:%d, pin_id=%d, config=0x%lx",
__func__, __LINE__, pin_id, config);
pio = pin_to_controller(info, pin_to_bank(pin_id));
+
+ if (!pio)
+ return -EINVAL;
+
pin = pin_id % MAX_NB_GPIO_PER_BANK;
mask = pin_to_mask(pin);
pin = pin_id % MAX_NB_GPIO_PER_BANK;
mask = pin_to_mask(pin);