Source of iso-resources.c - linux-imx - PHYTEC BitBucket (Stash)

Ignore whitespace
Show whitespace characters
Hide e-diff
Unified diff
Side-by-side diff
Source viewDiff to previous
 
EXPORT_SYMBOL(fw_iso_resources_update);
​
/**
 * fw_iso_resources_free - frees allocated resources
 * @r: the resource manager
 *
 * This function deallocates the channel and bandwidth, if allocated.
 */
void fw_iso_resources_free(struct fw_iso_resources *r)
{
    struct fw_card *card = fw_parent_device(r->unit)->card;
    struct fw_card *card;
    int bandwidth, channel;
​
    /* Not initialized. */
    if (r->unit == NULL)
        return;
    card = fw_parent_device(r->unit)->card;
​
    mutex_lock(&r->mutex);
​
    if (r->allocated) {
        bandwidth = r->bandwidth + r->bandwidth_overhead;
        fw_iso_resource_manage(card, r->generation, 1uLL << r->channel,
                       &channel, &bandwidth, false);
        if (channel < 0)
            dev_err(&r->unit->device,
                "isochronous resource deallocation failed\n");
​