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| author | Masahiro Yamada <yamada.masahiro@socionext.com> | 2017-10-21 01:57:39 +0900 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-11-08 13:54:16 +0100 |
| commit | 4dd5f60e9a841da5c14c2a0a23290adddb4b5087 (patch) | |
| tree | 536ac44c75280d921071edfd289a77726a2cd70f | |
| parent | 01d35cabd5abda28c352f63c87109c477fc84886 (diff) | |
| download | linux-4dd5f60e9a841da5c14c2a0a23290adddb4b5087.tar.gz linux-4dd5f60e9a841da5c14c2a0a23290adddb4b5087.tar.bz2 linux-4dd5f60e9a841da5c14c2a0a23290adddb4b5087.zip | |
nvmem: mtk-efuse: use stack for nvmem_config instead of malloc'ing it
nvmem_register() copies all the members of nvmem_config to
nvmem_device. So, nvmem_config is one-time use data during
probing. There is no point to keep it until the driver detach.
Using stack should be no problem because nvmem_config is pretty
small.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/nvmem/mtk-efuse.c | 24 |
1 files changed, 10 insertions, 14 deletions
diff --git a/drivers/nvmem/mtk-efuse.c b/drivers/nvmem/mtk-efuse.c index 32fd572e18c5..fa7a0f66b37e 100644 --- a/drivers/nvmem/mtk-efuse.c +++ b/drivers/nvmem/mtk-efuse.c @@ -49,7 +49,7 @@ static int mtk_efuse_probe(struct platform_device *pdev) struct device *dev = &pdev->dev; struct resource *res; struct nvmem_device *nvmem; - struct nvmem_config *econfig; + struct nvmem_config econfig = {}; void __iomem *base; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); @@ -57,19 +57,15 @@ static int mtk_efuse_probe(struct platform_device *pdev) if (IS_ERR(base)) return PTR_ERR(base); - econfig = devm_kzalloc(dev, sizeof(*econfig), GFP_KERNEL); - if (!econfig) - return -ENOMEM; - - econfig->stride = 4; - econfig->word_size = 4; - econfig->reg_read = mtk_reg_read; - econfig->reg_write = mtk_reg_write; - econfig->size = resource_size(res); - econfig->priv = base; - econfig->dev = dev; - econfig->owner = THIS_MODULE; - nvmem = nvmem_register(econfig); + econfig.stride = 4; + econfig.word_size = 4; + econfig.reg_read = mtk_reg_read; + econfig.reg_write = mtk_reg_write; + econfig.size = resource_size(res); + econfig.priv = base; + econfig.dev = dev; + econfig.owner = THIS_MODULE; + nvmem = nvmem_register(&econfig); if (IS_ERR(nvmem)) return PTR_ERR(nvmem); |