From 0f41dabe45df9fe68d3207c5b7af905db7c00ce4 Mon Sep 17 00:00:00 2001 From: Bartosz Golaszewski Date: Tue, 24 Dec 2019 13:07:00 +0100 Subject: [PATCH] gpiolib: use gpiochip_get_desc() in linehandle_create() Unduplicate the ngpio check by simply calling gpiochip_get_desc() and checking its return value. Signed-off-by: Bartosz Golaszewski Reviewed-by: Andy Shevchenko Reviewed-by: Linus Walleij --- drivers/gpio/gpiolib.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 342c960..166160c 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -678,14 +678,13 @@ static int linehandle_create(struct gpio_device *gdev, void __user *ip) /* Request each GPIO */ for (i = 0; i < handlereq.lines; i++) { u32 offset = handlereq.lineoffsets[i]; - struct gpio_desc *desc; + struct gpio_desc *desc = gpiochip_get_desc(gdev->chip, offset); - if (offset >= gdev->ngpio) { - ret = -EINVAL; + if (IS_ERR(desc)) { + ret = PTR_ERR(desc); goto out_free_descs; } - desc = &gdev->descs[offset]; ret = gpiod_request(desc, lh->label); if (ret) goto out_free_descs; -- 2.7.4