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platform/x86: mlx-platform: Fix an ERR_PTR vs NULL issue 

devm_ioport_map() returns NULL on error but we accidentally check for
error pointers instead.

Fixes: c6acad68eb ("platform/mellanox: mlxreg-hotplug: Modify to use a regmap interface")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Vadim Pasternak <vadimp@melanox.com>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
hifive-unleashed-5.1
Dan Carpenter 2018-02-06 15:45:36 +03:00 committed by Darren Hart (VMware)
parent 661405bd81
commit 8a0f5b6f33
1 changed files with 2 additions and 2 deletions
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4
drivers/platform/x86/mlx-platform.c
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@ -522,8 +522,8 @@ static int __init mlxplat_init(void)
mlxplat_mlxcpld_regmap_ctx.base = devm_ioport_map(&mlxplat_dev->dev,
mlxplat_lpc_resources[1].start, 1);
if (IS_ERR(mlxplat_mlxcpld_regmap_ctx.base)) {
err = PTR_ERR(mlxplat_mlxcpld_regmap_ctx.base);
if (!mlxplat_mlxcpld_regmap_ctx.base) {
err = -ENOMEM;
goto fail_platform_mux_register;
}