This driver allows clk_get() failure, and still work without it.
This patch adds !IS_ERR(plgpio->clk) checking in plgpio_request() error path
so we only call clk_disable_unprepare() if clk_prepare_enable() is called.
Signed-off-by: Axel Lin <axel....@ingics.com>
---
drivers/pinctrl/spear/pinctrl-plgpio.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/pinctrl/spear/pinctrl-plgpio.c
b/drivers/pinctrl/spear/pinctrl-plgpio.c
index 1044ad3..cf6d9c2 100644
--- a/drivers/pinctrl/spear/pinctrl-plgpio.c
+++ b/drivers/pinctrl/spear/pinctrl-plgpio.c
@@ -243,7 +243,8 @@ static int plgpio_request(struct gpio_chip *chip, unsigned
offset)
return 0;
err1:
- clk_disable_unprepare(plgpio->clk);
+ if (!IS_ERR(plgpio->clk))
+ clk_disable_unprepare(plgpio->clk);
err0:
pinctrl_free_gpio(gpio);
return ret;
--
1.7.9.5
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