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path: root/drivers/gpio/gpio-aspeed.c
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Diffstat (limited to 'drivers/gpio/gpio-aspeed.c')
-rw-r--r--drivers/gpio/gpio-aspeed.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpio/gpio-aspeed.c b/drivers/gpio/gpio-aspeed.c
index ccea609676ee..4ca436e66bdb 100644
--- a/drivers/gpio/gpio-aspeed.c
+++ b/drivers/gpio/gpio-aspeed.c
@@ -646,6 +646,9 @@ static int enable_debounce(struct gpio_chip *chip, unsigned int offset,
int rc;
int i;
+ if (!gpio->clk)
+ return -EINVAL;
+
rc = usecs_to_cycles(gpio, usecs, &requested_cycles);
if (rc < 0) {
dev_warn(chip->parent, "Failed to convert %luus to cycles at %luHz: %d\n",