Half of the code in the GPIO library is written in an expectation that
any non-zero value returned from the ->request() callback is an error code,
while some code checks only for negative values.
Unify expectations about ->request() returned value to be non-zero
for an error and 0 for the success.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
*/
status = gpiod_request(desc, "sysfs");
- if (status < 0) {
+ if (status) {
if (status == -EPROBE_DEFER)
status = -ENODEV;
goto done;
ret = -EINVAL;
spin_lock_irqsave(&gpio_lock, flags);
- if (ret < 0) {
+ if (ret) {
desc_set_label(desc, NULL);
kfree_const(label);
clear_bit(FLAG_REQUESTED, &desc->flags);
if (try_module_get(gdev->owner)) {
ret = gpiod_request_commit(desc, label);
- if (ret < 0)
+ if (ret)
module_put(gdev->owner);
else
get_device(&gdev->dev);
* the device name as label
*/
ret = gpiod_request(desc, con_id ? con_id : devname);
- if (ret < 0) {
+ if (ret) {
if (ret == -EBUSY && flags & GPIOD_FLAGS_BIT_NONEXCLUSIVE) {
/*
* This happens when there are several consumers for