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Commit bab4445f authored by Vinod Koul's avatar Vinod Koul Committed by Takashi Iwai
Browse files

ALSA: hda: add hda link cleanup routine 



In HDA extended bus the HDA link objects are created when multilink
capabilities are parsed. We need a routine which free up these link objects
for a bus. So add snd_hdac_link_free_all routine

Signed-off-by: default avatarJeeja KP <jeeja.kp@intel.com>
Signed-off-by: default avatarVinod Koul <vinod.koul@intel.com>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent e7a3484d

include/sound/hdaudio_ext.h

+1 −0
Original line number Diff line number Diff line
@@ -90,6 +90,7 @@ void snd_hdac_ext_stream_init(struct hdac_ext_bus *bus, 
int snd_hdac_ext_stream_init_all(struct hdac_ext_bus *ebus, int start_idx,

		int num_stream, int dir);

void snd_hdac_stream_free_all(struct hdac_ext_bus *ebus);

void snd_hdac_link_free_all(struct hdac_ext_bus *ebus);

struct hdac_ext_stream *snd_hdac_ext_stream_assign(struct hdac_ext_bus *bus,

					   struct snd_pcm_substream *substream,

					   int type);

sound/hda/ext/hdac_ext_controller.c

+18 −0
Original line number Diff line number Diff line
@@ -193,6 +193,24 @@ int snd_hdac_ext_bus_get_ml_capabilities(struct hdac_ext_bus *ebus) 
}

EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_get_ml_capabilities);



/**

 * snd_hdac_link_free_all- free hdac extended link objects

 *

 * @ebus: HD-audio ext core bus

 */



void snd_hdac_link_free_all(struct hdac_ext_bus *ebus)

{

	struct hdac_ext_link *l;



	while (!list_empty(&ebus->hlink_list)) {

		l = list_first_entry(&ebus->hlink_list, struct hdac_ext_link, list);

		list_del(&l->list);

		kfree(l);

	}

}

EXPORT_SYMBOL_GPL(snd_hdac_link_free_all);



/**

 * snd_hdac_ext_bus_get_link_index - get link based on codec name

 * @ebus: HD-audio extended core bus