drivers/ioexpander/gpio.c: Return EINVAL if written value is not 0 nor 1.

This commit is contained in:
Valmantas Paliksa
2019-03-22 07:10:57 -06:00
committed by Gregory Nutt
parent 46ba6bd6e3
commit 5bfa7a8df4
+4
View File
@@ -251,6 +251,10 @@ static ssize_t gpio_write(FAR struct file *filep, FAR const char *buffer,
{
val = 1;
}
else
{
return -EINVAL;
}
/* Write the GPIO value */