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-rw-r--r--drivers/gpio/gpiolib.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 4e10b10..c6326e4 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -150,9 +150,10 @@ EXPORT_SYMBOL_GPL(gpio_to_desc);
static struct gpio_desc *gpiochip_offset_to_desc(struct gpio_chip *chip,
unsigned int offset)
{
- unsigned int gpio = chip->base + offset;
+ if (offset >= chip->ngpio)
+ return ERR_PTR(-EINVAL);
- return gpio_to_desc(gpio);
+ return &chip->desc[offset];
}
/**
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