Check the clk_prepare_enable return value to avoid false positive probe.

Signed-off-by: Boris BREZILLON <boris.brezil...@free-electrons.com>
---
 drivers/pinctrl/pinctrl-sunxi.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/pinctrl/pinctrl-sunxi.c b/drivers/pinctrl/pinctrl-sunxi.c
index f9fabe9..2d9ca1c 100644
--- a/drivers/pinctrl/pinctrl-sunxi.c
+++ b/drivers/pinctrl/pinctrl-sunxi.c
@@ -884,7 +884,9 @@ static int sunxi_pinctrl_probe(struct platform_device *pdev)
                goto gpiochip_error;
        }
 
-       clk_prepare_enable(clk);
+       ret = clk_prepare_enable(clk);
+       if (ret)
+               goto gpiochip_error;
 
        pctl->irq = irq_of_parse_and_map(node, 0);
        if (!pctl->irq) {
-- 
1.8.3.2

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