kzalloc can fail. Add a null check to avoid null pointer
dereference error while accessing the pointer later.
Signed-off-by: Sachin Kamat <sachin.ka...@linaro.org>
---
drivers/pinctrl/sunxi/pinctrl-sunxi.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/pinctrl/sunxi/pinctrl-sunxi.c
b/drivers/pinctrl/sunxi/pinctrl-sunxi.c
index f1ca75e6d7b1..5f38c7f67834 100644
--- a/drivers/pinctrl/sunxi/pinctrl-sunxi.c
+++ b/drivers/pinctrl/sunxi/pinctrl-sunxi.c
@@ -211,6 +211,10 @@ static int sunxi_pctrl_dt_node_to_map(struct pinctrl_dev
*pctldev,
configlen++;
pinconfig = kzalloc(configlen * sizeof(*pinconfig), GFP_KERNEL);
+ if (!pinconfig) {
+ kfree(*map);
+ return -ENOMEM;
+ }
if (!of_property_read_u32(node, "allwinner,drive", &val)) {
u16 strength = (val + 1) * 10;
--
1.7.9.5
--
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