1 // SPDX-License-Identifier: GPL-2.0-only
6 #include <linux/slab.h>
7 #include <sound/core.h>
8 #include <sound/hdaudio.h>
11 * snd_array_new - get a new element from the given array
12 * @array: the array object
14 * Get a new element from the given array. If it exceeds the
15 * pre-allocated array size, re-allocate the array.
17 * Returns NULL if allocation failed.
19 void *snd_array_new(struct snd_array *array)
21 if (snd_BUG_ON(!array->elem_size))
23 if (array->used >= array->alloced) {
24 int num = array->alloced + array->alloc_align;
25 int oldsize = array->alloced * array->elem_size;
26 int size = (num + 1) * array->elem_size;
28 if (snd_BUG_ON(num >= 4096))
30 nlist = krealloc(array->list, size, GFP_KERNEL);
33 memset(nlist + oldsize, 0, size - oldsize);
37 return snd_array_elem(array, array->used++);
39 EXPORT_SYMBOL_GPL(snd_array_new);
42 * snd_array_free - free the given array elements
43 * @array: the array object
45 void snd_array_free(struct snd_array *array)
52 EXPORT_SYMBOL_GPL(snd_array_free);