[v4,3/5] gpiolib: Change bitmap allocation to kmalloc_array

Message ID 20180323163453.96495-4-swboyd@chromium.org
State New
Headers show
Series
  • Support qcom pinctrl protected pins
Related show

Commit Message

Stephen Boyd March 23, 2018, 4:34 p.m.
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>
---
 drivers/gpio/gpiolib.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Patch

diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index cc0e1519da45..db3788d17ba0 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -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;