From d9cc5a0edb705ced4ce91b4c6ee73ec6f5bfa49a Mon Sep 17 00:00:00 2001 From: Alexey Khoroshilov Date: Fri, 8 Dec 2017 11:37:00 -0600 Subject: fpga: socfpga-a10: disable clk on error in socfpga_a10_fpga_probe() If fpga_mgr_register() fails, a clock is left undisabled. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Alexey Khoroshilov Reviewed-by: Moritz Fischer Signed-off-by: Alan Tull Signed-off-by: Greg Kroah-Hartman --- drivers/fpga/socfpga-a10.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) (limited to 'drivers/fpga/socfpga-a10.c') 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) -- cgit v1.2.3