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gpio: sim: use sysfs_streq() and avoid an strdup()

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When comparing strings passed to us from configfs, we can pass the page
argument directly to sysfs_streq() and avoid manual string trimming.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
This commit is contained in:
Bartosz Golaszewski 2023-08-09 15:14:41 +02:00
parent 87d0688483
commit 39df52ddd9
1 changed files with 3 additions and 12 deletions
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15
drivers/gpio/gpio-sim.c
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@ -1272,7 +1272,6 @@ gpio_sim_hog_config_direction_store(struct config_item *item,
{
struct gpio_sim_hog *hog = to_gpio_sim_hog(item);
struct gpio_sim_device *dev = gpio_sim_hog_get_device(hog);
char *trimmed;
int dir;
mutex_lock(&dev->lock);
@ -1282,23 +1281,15 @@ gpio_sim_hog_config_direction_store(struct config_item *item,
return -EBUSY;
}
trimmed = gpio_sim_strdup_trimmed(page, count);
if (!trimmed) {
mutex_unlock(&dev->lock);
return -ENOMEM;
}
if (strcmp(trimmed, "input") == 0)
if (sysfs_streq(page, "input"))
dir = GPIOD_IN;
else if (strcmp(trimmed, "output-high") == 0)
else if (sysfs_streq(page, "output-high"))
dir = GPIOD_OUT_HIGH;
else if (strcmp(trimmed, "output-low") == 0)
else if (sysfs_streq(page, "output-low"))
dir = GPIOD_OUT_LOW;
else
dir = -EINVAL;
kfree(trimmed);
if (dir < 0) {
mutex_unlock(&dev->lock);
return dir;