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-rw-r--r--drivers/pinctrl/sunxi/pinctrl-sunxi.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/pinctrl/sunxi/pinctrl-sunxi.c b/drivers/pinctrl/sunxi/pinctrl-sunxi.c
index 1dc1882cbdd7..1d1cd3d6d379 100644
--- a/drivers/pinctrl/sunxi/pinctrl-sunxi.c
+++ b/drivers/pinctrl/sunxi/pinctrl-sunxi.c
@@ -848,6 +848,9 @@ static int sunxi_pmx_request(struct pinctrl_dev *pctldev, unsigned offset)
char supply[16];
int ret;
+ if (WARN_ON_ONCE(bank_offset >= ARRAY_SIZE(pctl->regulators)))
+ return -EINVAL;
+
if (reg) {
refcount_inc(&s_reg->refcount);
return 0;