From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephen Boyd Subject: [PATCH v4 3/5] gpiolib: Change bitmap allocation to kmalloc_array Date: Fri, 23 Mar 2018 09:34:51 -0700 Message-ID: <20180323163453.96495-4-swboyd@chromium.org> References: <20180323163453.96495-1-swboyd@chromium.org> Return-path: In-Reply-To: <20180323163453.96495-1-swboyd@chromium.org> Sender: linux-kernel-owner@vger.kernel.org To: Linus Walleij Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-arm-msm@vger.kernel.org, Timur Tabi , Bjorn Andersson , Grant Likely , linux-gpio@vger.kernel.org, Andy Shevchenko List-Id: devicetree@vger.kernel.org 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 Signed-off-by: Stephen Boyd --- drivers/gpio/gpiolib.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) 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; -- Sent by a computer through tubes