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nvmem: imx-iim: 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>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Masahiro Yamada 2017-10-21 01:57:38 +09:00 committed by Greg Kroah-Hartman
parent a2e373438f
commit 01d35cabd5
1 changed files with 11 additions and 14 deletions
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25
drivers/nvmem/imx-iim.c
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@ -34,7 +34,6 @@ struct imx_iim_drvdata {
struct iim_priv {
void __iomem *base;
struct clk *clk;
struct nvmem_config nvmem;
};
static int imx_iim_read(void *context, unsigned int offset,
@ -108,7 +107,7 @@ static int imx_iim_probe(struct platform_device *pdev)
struct resource *res;
struct iim_priv *iim;
struct nvmem_device *nvmem;
struct nvmem_config *cfg;
struct nvmem_config cfg = {};
const struct imx_iim_drvdata *drvdata = NULL;
iim = devm_kzalloc(dev, sizeof(*iim), GFP_KERNEL);
@ -130,19 +129,17 @@ static int imx_iim_probe(struct platform_device *pdev)
if (IS_ERR(iim->clk))
return PTR_ERR(iim->clk);
cfg = &iim->nvmem;
cfg.name = "imx-iim",
cfg.read_only = true,
cfg.word_size = 1,
cfg.stride = 1,
cfg.owner = THIS_MODULE,
cfg.reg_read = imx_iim_read,
cfg.dev = dev;
cfg.size = drvdata->nregs;
cfg.priv = iim;
cfg->name = "imx-iim",
cfg->read_only = true,
cfg->word_size = 1,
cfg->stride = 1,
cfg->owner = THIS_MODULE,
cfg->reg_read = imx_iim_read,
cfg->dev = dev;
cfg->size = drvdata->nregs;
cfg->priv = iim;
nvmem = nvmem_register(cfg);
nvmem = nvmem_register(&cfg);
if (IS_ERR(nvmem))
return PTR_ERR(nvmem);