On 09/06/2015 07:31 PM, Mauro Carvalho Chehab wrote:
> Cleanup the code a little bit by moving the routine that creates
> links between DVR and demux to the I/O entitis into a separate
> function.
>
> While here, fix the code to use strncmp() instead of strcmp().
>
> Signed-off-by: Mauro Carvalho Chehab <mche...@osg.samsung.com>
Acked-by: Hans Verkuil <hans.verk...@cisco.com>
>
> diff --git a/drivers/media/dvb-core/dvbdev.c b/drivers/media/dvb-core/dvbdev.c
> index 8527fc40e6a0..ea76fe54e0e4 100644
> --- a/drivers/media/dvb-core/dvbdev.c
> +++ b/drivers/media/dvb-core/dvbdev.c
> @@ -522,6 +522,28 @@ EXPORT_SYMBOL(dvb_unregister_device);
>
>
> #ifdef CONFIG_MEDIA_CONTROLLER_DVB
> +
> +static int dvb_create_io_intf_links(struct dvb_adapter *adap,
> + struct media_interface *intf,
> + char *name)
> +{
> + struct media_device *mdev = adap->mdev;
> + struct media_entity *entity;
> + struct media_link *link;
> +
> + media_device_for_each_entity(entity, mdev) {
> + if (entity->function == MEDIA_ENT_F_IO) {
> + if (strncmp(entity->name, name, strlen(name)))
> + continue;
> + link = media_create_intf_link(entity, intf,
> + MEDIA_LNK_FL_ENABLED);
> + if (!link)
> + return -ENOMEM;
> + }
> + }
> + return 0;
> +}
> +
> int dvb_create_media_graph(struct dvb_adapter *adap)
> {
> struct media_device *mdev = adap->mdev;
> @@ -619,25 +641,15 @@ int dvb_create_media_graph(struct dvb_adapter *adap)
> if (!link)
> return -ENOMEM;
> }
> -
> - media_device_for_each_entity(entity, mdev) {
> - if (entity->function == MEDIA_ENT_F_IO) {
> - if (!strcmp(entity->name, DVR_TSOUT)) {
> - link = media_create_intf_link(entity,
> - intf,
> - MEDIA_LNK_FL_ENABLED);
> - if (!link)
> - return -ENOMEM;
> - }
> - if (!strcmp(entity->name, DEMUX_TSOUT)) {
> - link = media_create_intf_link(entity,
> - intf,
> - MEDIA_LNK_FL_ENABLED);
> - if (!link)
> - return -ENOMEM;
> - }
> - break;
> - }
> + if (intf->type == MEDIA_INTF_T_DVB_DVR) {
> + ret = dvb_create_io_intf_links(adap, intf, DVR_TSOUT);
> + if (ret)
> + return ret;
> + }
> + if (intf->type == MEDIA_INTF_T_DVB_DEMUX) {
> + ret = dvb_create_io_intf_links(adap, intf, DEMUX_TSOUT);
> + if (ret)
> + return ret;
> }
> }
> return 0;
>
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