if (data->capture_clear)
pps_default_params |= PPS_CAPTURECLEAR | PPS_OFFSETCLEAR;
data->pps = pps_register_source(&data->info, pps_default_params);
- if (data->pps == NULL) {
+ if (IS_ERR(data->pps)) {
dev_err(&pdev->dev, "failed to register IRQ %d as PPS source\n",
data->irq);
- return -EINVAL;
+ return PTR_ERR(data->pps);
}
/* register IRQ interrupt handler */
{
pps = pps_register_source(&pps_ktimer_info,
PPS_CAPTUREASSERT | PPS_OFFSETASSERT);
- if (pps == NULL) {
+ if (IS_ERR(pps)) {
pr_err("cannot register PPS source\n");
- return -ENOMEM;
+ return PTR_ERR(pps);
}
timer_setup(&ktimer, pps_ktimer_event, 0);
pps = pps_register_source(&info, PPS_CAPTUREBOTH | \
PPS_OFFSETASSERT | PPS_OFFSETCLEAR);
- if (pps == NULL) {
+ if (IS_ERR(pps)) {
pr_err("cannot register PPS source \"%s\"\n", info.path);
- return -ENOMEM;
+ return PTR_ERR(pps);
}
pps->lookup_cookie = tty;
device->pps = pps_register_source(&info,
PPS_CAPTUREBOTH | PPS_OFFSETASSERT | PPS_OFFSETCLEAR);
- if (device->pps == NULL) {
+ if (IS_ERR(device->pps)) {
pr_err("couldn't register PPS source\n");
goto err_release_dev;
}
* source is described by info's fields and it will have, as default PPS
* parameters, the ones specified into default_params.
*
- * The function returns, in case of success, the PPS device. Otherwise NULL.
+ * The function returns, in case of success, the PPS device. Otherwise
+ * ERR_PTR(errno).
*/
struct pps_device *pps_register_source(struct pps_source_info *info,
pps_register_source_exit:
pr_err("%s: unable to register source\n", info->name);
- return NULL;
+ return ERR_PTR(err);
}
EXPORT_SYMBOL(pps_register_source);