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pinctrl: at91-pio4: account for const type of of_device_id.data

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This driver creates a const structure that it stores in the data field
of an of_device_id array.

Adding const to the declaration of the location that receives the
const value from the data field ensures that the compiler will
continue to check that the value is not modified.  Furthermore, the
const-discarding cast on the extraction from the data field is no
longer needed.

Done using Coccinelle.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Julia Lawall 2018-01-02 14:27:58 +01:00 committed by Linus Walleij
parent 9291c65b01
commit 8b74c7d3e3
1 changed files with 2 additions and 2 deletions
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4
drivers/pinctrl/pinctrl-at91-pio4.c
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@ -910,7 +910,7 @@ static int atmel_pinctrl_probe(struct platform_device *pdev)
int i, ret;
struct resource *res;
struct atmel_pioctrl *atmel_pioctrl;
struct atmel_pioctrl_data *atmel_pioctrl_data;
const struct atmel_pioctrl_data *atmel_pioctrl_data;
atmel_pioctrl = devm_kzalloc(dev, sizeof(*atmel_pioctrl), GFP_KERNEL);
if (!atmel_pioctrl)
@ -924,7 +924,7 @@ static int atmel_pinctrl_probe(struct platform_device *pdev)
dev_err(dev, "unknown compatible string\n");
return -ENODEV;
}
atmel_pioctrl_data = (struct atmel_pioctrl_data *)match->data;
atmel_pioctrl_data = match->data;
atmel_pioctrl->nbanks = atmel_pioctrl_data->nbanks;
atmel_pioctrl->npins = atmel_pioctrl->nbanks * ATMEL_PIO_NPINS_PER_BANK;