Commit ace56935 authored Mar 23, 2018 by Stephen Boyd Committed by Linus Walleij Mar 27, 2018

gpiolib: Change bitmap allocation to kmalloc_array



We don't need to clear out these bits when we set them immediately
after. Use kmalloc_array() to skip clearing the bits.

Suggested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Tested-by: Timur Tabi <timur@codeaurora.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

parent e4371f6e

drivers/gpio/gpiolib.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -341,7 +341,7 @@ static unsigned long gpiochip_allocate_mask(struct gpio_chip chip)
		{
		unsigned long *p;

		p = kcalloc(BITS_TO_LONGS(chip->ngpio), sizeof(long), GFP_KERNEL);
		p = kmalloc_array(BITS_TO_LONGS(chip->ngpio), sizeof(*p), GFP_KERNEL);
		if (!p)
		return NULL;