diff options
| author | Andy Shevchenko <andy.shevchenko@gmail.com> | 2024-11-10 21:16:15 +0100 |
|---|---|---|
| committer | Bartosz Golaszewski <bartosz.golaszewski@linaro.org> | 2024-11-12 09:46:17 +0100 |
| commit | e106b1dd38e723ec2bb2bf57ea9b2aff464b9423 (patch) | |
| tree | f0858e3fdad39a090c221575380bd947e41c37b9 /drivers/gpio | |
| parent | MAINTAINERS: add gpio driver to PolarFire entry (diff) | |
| download | linux-e106b1dd38e723ec2bb2bf57ea9b2aff464b9423.tar.xz linux-e106b1dd38e723ec2bb2bf57ea9b2aff464b9423.zip | |
gpiolib: cdev: use !mem_is_zero() instead of memchr_inv(s, 0, n)
Use the mem_is_zero() helper where possible.
Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20241110201706.16614-1-andy.shevchenko@gmail.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Diffstat (limited to 'drivers/gpio')
| -rw-r--r-- | drivers/gpio/gpiolib-cdev.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/gpio/gpiolib-cdev.c b/drivers/gpio/gpiolib-cdev.c index 83ebcc8c83eb..40f76a90fd7d 100644 --- a/drivers/gpio/gpiolib-cdev.c +++ b/drivers/gpio/gpiolib-cdev.c @@ -16,7 +16,6 @@ #include <linux/hte.h> #include <linux/interrupt.h> #include <linux/irqreturn.h> -#include <linux/kernel.h> #include <linux/kfifo.h> #include <linux/module.h> #include <linux/mutex.h> @@ -25,6 +24,7 @@ #include <linux/poll.h> #include <linux/seq_file.h> #include <linux/spinlock.h> +#include <linux/string.h> #include <linux/timekeeping.h> #include <linux/uaccess.h> #include <linux/workqueue.h> @@ -1215,7 +1215,7 @@ static int gpio_v2_line_config_validate(struct gpio_v2_line_config *lc, if (lc->num_attrs > GPIO_V2_LINE_NUM_ATTRS_MAX) return -EINVAL; - if (memchr_inv(lc->padding, 0, sizeof(lc->padding))) + if (!mem_is_zero(lc->padding, sizeof(lc->padding))) return -EINVAL; for (i = 0; i < num_lines; i++) { @@ -1629,7 +1629,7 @@ static int linereq_create(struct gpio_device *gdev, void __user *ip) if ((ulr.num_lines == 0) || (ulr.num_lines > GPIO_V2_LINES_MAX)) return -EINVAL; - if (memchr_inv(ulr.padding, 0, sizeof(ulr.padding))) + if (!mem_is_zero(ulr.padding, sizeof(ulr.padding))) return -EINVAL; lc = &ulr.config; @@ -2411,7 +2411,7 @@ static int lineinfo_get(struct gpio_chardev_data *cdev, void __user *ip, if (copy_from_user(&lineinfo, ip, sizeof(lineinfo))) return -EFAULT; - if (memchr_inv(lineinfo.padding, 0, sizeof(lineinfo.padding))) + if (!mem_is_zero(lineinfo.padding, sizeof(lineinfo.padding))) return -EINVAL; desc = gpio_device_get_desc(cdev->gdev, lineinfo.offset); |