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topology: Define a free handler for the element

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This handler is defined for type-specific destruction of an element.

Signed-off-by: Mengdong Lin <mengdong.lin@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Mengdong Lin 2016-04-07 15:29:01 +08:00 • committed by Takashi Iwai
parent 374c5fa9c5
commit 6b31bf8edb
2 changed files with 7 additions and 1 deletions
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6
src/topology/elem.c
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@ -83,8 +83,12 @@ void tplg_elem_free(struct tplg_elem *elem)
/* free struct snd_tplg_ object, /* free struct snd_tplg_ object,
* the union pointers share the same address * the union pointers share the same address
*/ */
if (elem->obj) if (elem->obj) {
if (elem->free)
elem->free(elem->obj);
free(elem->obj); free(elem->obj);
}
free(elem); free(elem);
} }

2
src/topology/tplg_local.h
View file

@ -127,6 +127,8 @@ struct tplg_elem {
*/ */
struct list_head ref_list; struct list_head ref_list;
struct list_head list; /* list of all elements with same type */ struct list_head list; /* list of all elements with same type */
void (*free)(void *obj);
}; };
struct map_elem { struct map_elem {