The memory allocation function devm_kcalloc() may return NULL pointer,
so it is better to add a check for 'p->func[i]->pins' to avoid possible
NULL pointer dereference.
Signed-off-by: QintaoShen <unsimple1...@163.com>
---
drivers/pinctrl/ralink/pinctrl-rt2880.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/pinctrl/ralink/pinctrl-rt2880.c
b/drivers/pinctrl/ralink/pinctrl-rt2880.c
index 96fc06d..308610e 100644
--- a/drivers/pinctrl/ralink/pinctrl-rt2880.c
+++ b/drivers/pinctrl/ralink/pinctrl-rt2880.c
@@ -266,6 +266,10 @@ static int rt2880_pinmux_pins(struct rt2880_priv *p)
p->func[i]->pin_count,
sizeof(int),
GFP_KERNEL);
+
+ if (!p->func[i]->pins)
+ continue;
+
for (j = 0; j < p->func[i]->pin_count; j++)
p->func[i]->pins[j] = p->func[i]->pin_first + j;
--
2.7.4
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