c
int pinctrl_enable(struct pinctrl_dev *pctldev)
{
    int error;

    error = pinctrl_claim_hogs(pctldev);
    if (error) {
        dev_err(pctldev->dev, "could not claim hogs: %i\n", error);
        goto cleanup;
    }

    // Rest of the function...

    return 0;

cleanup:
    pinctrl_free_pindescs(pctldev, pctldev->desc->pins,
                          pctldev->desc->npins);
    mutex_destroy(&pctldev->mutex);
    kfree(pctldev);
    return error;
}
