[PATCH v2] pinctrl: st: remove gpiochip in failure cases

[Pramod Gurav]

This patch releases gpiochip related resources by calling
gpiochip_remove when gpiochip_irqchip_add fails.

CC: Srinivas Kandagatla <srinivas.kandagatla at gmail.com>
CC: Srinivas Kandagatla <srinivas.kandagatla at linaro.com>
CC: Maxime Coquelin <maxime.coquelin at st.com>
CC: Patrice Chotard <patrice.chotard at st.com>
CC: Linus Walleij <linus.walleij at linaro.org>
CC: Bjorn Andersson <bjorn.andersson at sonymobile.com>

Signed-off-by: Pramod Gurav <pramod.gurav at smartplayin.com>
---
Changes since v1:
Dropped adding remove function as it will never be tested as 
the driver is bool.

 drivers/pinctrl/pinctrl-st.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/pinctrl/pinctrl-st.c b/drivers/pinctrl/pinctrl-st.c
index 5475374..af2f589 100644
--- a/drivers/pinctrl/pinctrl-st.c
+++ b/drivers/pinctrl/pinctrl-st.c
@@ -1517,6 +1517,7 @@ static int st_gpiolib_register_bank(struct st_pinctrl *info,
 					   0, handle_simple_irq,
 					   IRQ_TYPE_LEVEL_LOW);
 		if (err) {
+			gpiochip_remove(&bank->gpio_chip);
 			dev_info(dev, "could not add irqchip\n");
 			return err;
 		}
-- 
1.7.9.5