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authorOlliver Schinagl <oliver@schinagl.nl>2015-01-21 22:33:45 +0100
committerLinus Walleij <linus.walleij@linaro.org>2015-01-30 14:43:04 +0100
commit9e089246a53cce0e14f04fb24de0e1bc62ec5400 (patch)
treec4aa8567014cdc23f1b0afa29af4bd88d3f9c423 /drivers/gpio
parent161af6cd899508506ac5df101af7e569f28aa0e6 (diff)
downloadlinux-9e089246a53cce0e14f04fb24de0e1bc62ec5400.tar.bz2
gpio: use sizeof() instead of hardcoded values
gpiolib uses a fixed string for the suffixes and defines it at 32 bytes. Later in the code snprintf is used with this fixed value of 32. Using sizeof() is safer in case the size for the suffixes is ever changed. Signed-off-by: Olliver Schinagl <oliver@schinagl.nl> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/gpio')
-rw-r--r--drivers/gpio/gpiolib.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index c9266410d84c..bf6016d7a023 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -1665,9 +1665,11 @@ static struct gpio_desc *of_find_gpio(struct device *dev, const char *con_id,
for (i = 0; i < ARRAY_SIZE(suffixes); i++) {
if (con_id)
- snprintf(prop_name, 32, "%s-%s", con_id, suffixes[i]);
+ snprintf(prop_name, sizeof(prop_name), "%s-%s", con_id,
+ suffixes[i]);
else
- snprintf(prop_name, 32, "%s", suffixes[i]);
+ snprintf(prop_name, sizeof(prop_name), "%s",
+ suffixes[i]);
desc = of_get_named_gpiod_flags(dev->of_node, prop_name, idx,
&of_flags);