diff options
Diffstat (limited to 'drivers/char/hw_random/hisi-rng.c')
| -rw-r--r-- | drivers/char/hw_random/hisi-rng.c | 19 |
1 files changed, 5 insertions, 14 deletions
diff --git a/drivers/char/hw_random/hisi-rng.c b/drivers/char/hw_random/hisi-rng.c index 40d96572c591..4e501d5c121f 100644 --- a/drivers/char/hw_random/hisi-rng.c +++ b/drivers/char/hw_random/hisi-rng.c @@ -1,9 +1,6 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (C) 2016 HiSilicon Co., Ltd. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #include <linux/err.h> @@ -76,17 +73,13 @@ static int hisi_rng_read(struct hwrng *rng, void *buf, size_t max, bool wait) static int hisi_rng_probe(struct platform_device *pdev) { struct hisi_rng *rng; - struct resource *res; int ret; rng = devm_kzalloc(&pdev->dev, sizeof(*rng), GFP_KERNEL); if (!rng) return -ENOMEM; - platform_set_drvdata(pdev, rng); - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - rng->base = devm_ioremap_resource(&pdev->dev, res); + rng->base = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(rng->base)) return PTR_ERR(rng->base); @@ -96,15 +89,13 @@ static int hisi_rng_probe(struct platform_device *pdev) rng->rng.read = hisi_rng_read; ret = devm_hwrng_register(&pdev->dev, &rng->rng); - if (ret) { - dev_err(&pdev->dev, "failed to register hwrng\n"); - return ret; - } + if (ret) + return dev_err_probe(&pdev->dev, ret, "failed to register hwrng\n"); return 0; } -static const struct of_device_id hisi_rng_dt_ids[] = { +static const struct of_device_id hisi_rng_dt_ids[] __maybe_unused = { { .compatible = "hisilicon,hip04-rng" }, { .compatible = "hisilicon,hip05-rng" }, { } |