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gpio: davinci: Allocate the correct amount of memory for controller

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Previously we created a controller structure per bank of GPIO pins. This
has since been changed to one per controller, but the allocation size
was not changed. Fix this here.

This also leaves the variable 'nbank' unused, instead of removing it,
move it down and use it to clean up a loop. For loops with multiple
initializers and/or iteration expressions, especially ones that don't
use those loop counters are quite hard to follow, fix this.

Signed-off-by: Andrew F. Davis <afd@ti.com>
Tested-by: Keerthy <j-keerthy@ti.com>
Acked-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Andrew F. Davis 2018-08-31 14:13:24 -05:00 committed by Linus Walleij
parent 587f7a694f
commit c809e37a3b
1 changed files with 4 additions and 6 deletions
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10
drivers/gpio/gpio-davinci.c
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@ -165,7 +165,7 @@ davinci_gpio_get_pdata(struct platform_device *pdev)
static int davinci_gpio_probe(struct platform_device *pdev)
{
int gpio, bank, i, ret = 0;
int bank, i, ret = 0;
unsigned int ngpio, nbank, nirq;
struct davinci_gpio_controller *chips;
struct davinci_gpio_platform_data *pdata;
@ -204,10 +204,7 @@ static int davinci_gpio_probe(struct platform_device *pdev)
else
nirq = DIV_ROUND_UP(ngpio, 16);
nbank = DIV_ROUND_UP(ngpio, 32);
chips = devm_kcalloc(dev,
nbank, sizeof(struct davinci_gpio_controller),
GFP_KERNEL);
chips = devm_kzalloc(dev, sizeof(*chips), GFP_KERNEL);
if (!chips)
return -ENOMEM;
@ -247,7 +244,8 @@ static int davinci_gpio_probe(struct platform_device *pdev)
#endif
spin_lock_init(&chips->lock);
for (gpio = 0, bank = 0; gpio < ngpio; gpio += 32, bank++)
nbank = DIV_ROUND_UP(ngpio, 32);
for (bank = 0; bank < nbank; bank++)
chips->regs[bank] = gpio_base + offset_array[bank];
ret = devm_gpiochip_add_data(dev, &chips->chip, chips);