[PATCH] fpga: socfpga-a10: disable clk on error in socfpga_a10_fpga_probe()

[Alexey Khoroshilov]

If fpga_mgr_register() fails, a clock is left undisabled.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshi...@ispras.ru>
---
 drivers/fpga/socfpga-a10.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/fpga/socfpga-a10.c b/drivers/fpga/socfpga-a10.c
index f8770af0f6b5..a46e343a5b72 100644
--- a/drivers/fpga/socfpga-a10.c
+++ b/drivers/fpga/socfpga-a10.c
@@ -519,8 +519,14 @@ static int socfpga_a10_fpga_probe(struct platform_device 
*pdev)
                return -EBUSY;
        }
 
-       return fpga_mgr_register(dev, "SoCFPGA Arria10 FPGA Manager",
+       ret = fpga_mgr_register(dev, "SoCFPGA Arria10 FPGA Manager",
                                 &socfpga_a10_fpga_mgr_ops, priv);
+       if (ret) {
+               clk_disable_unprepare(priv->clk);
+               return ret;
+       }
+
+       return 0;
 }
 
 static int socfpga_a10_fpga_remove(struct platform_device *pdev)
-- 
2.7.4