of_match_device() may return NULL.
Signed-off-by: Axel Lin <axel....@ingics.com>
---
drivers/pinctrl/pinctrl-at91.c | 17 +++++++++++++----
1 file changed, 13 insertions(+), 4 deletions(-)
diff --git a/drivers/pinctrl/pinctrl-at91.c b/drivers/pinctrl/pinctrl-at91.c
index 8490a55..32006c8 100644
--- a/drivers/pinctrl/pinctrl-at91.c
+++ b/drivers/pinctrl/pinctrl-at91.c
@@ -829,13 +829,18 @@ static int __devinit at91_pinctrl_probe_dt(struct
platform_device *pdev,
uint32_t *tmp;
struct device_node *np = pdev->dev.of_node;
struct device_node *child;
+ const struct of_device_id *match;
if (!np)
return -ENODEV;
+ match = of_match_device(at91_pinctrl_of_match, &pdev->dev)->data;
+ if (!match)
+ return -ENODEV;
+
info->dev = &pdev->dev;
- info->ops = (struct at91_pinctrl_mux_ops*)
- of_match_device(at91_pinctrl_of_match, &pdev->dev)->data;
+ info->ops = (struct at91_pinctrl_mux_ops *) match->data;
+
at91_pinctrl_child_count(info, np);
if (info->nbanks < 1) {
@@ -1359,6 +1364,7 @@ static struct of_device_id at91_gpio_of_match[]
__devinitdata = {
static int __devinit at91_gpio_probe(struct platform_device *pdev)
{
struct device_node *np = pdev->dev.of_node;
+ const struct of_device_id *match;
struct resource *res;
struct at91_gpio_chip *at91_chip = NULL;
struct gpio_chip *chip;
@@ -1399,8 +1405,11 @@ static int __devinit at91_gpio_probe(struct
platform_device *pdev)
goto err;
}
- at91_chip->ops = (struct at91_pinctrl_mux_ops*)
- of_match_device(at91_gpio_of_match, &pdev->dev)->data;
+ match = of_match_device(at91_gpio_of_match, &pdev->dev);
+ if (!match)
+ return -ENODEV;
+
+ at91_chip->ops = (struct at91_pinctrl_mux_ops *) match->data;
at91_chip->pioc_virq = irq;
at91_chip->pioc_idx = alias_idx;
--
1.7.9.5
--
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