It's actually fine to read values of output lines. This was also
allowed by the legacy sysfs interface.
Signed-off-by: Bartosz Golaszewski <b...@bgdev.pl>
---
drivers/gpio/gpiolib.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 57973524360d..19d36698574b 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -431,7 +431,7 @@ static long linehandle_ioctl(struct file *filep, unsigned
int cmd,
int i;
if (cmd == GPIOHANDLE_GET_LINE_VALUES_IOCTL) {
- /* TODO: check if descriptors are really input */
+ /* NOTE: It's ok to read values of output lines. */
int ret = gpiod_get_array_value_complex(false,
true,
lh->numdescs,
--
2.17.1
