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[ALSA] hda-codec - Allocate connection lists dynamically in generic parser

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Modules: HDA generic driver

Allocate connection lists dynamically in generic parser.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2005-11-21 16:33:51 +01:00 committed by Jaroslav Kysela
parent 54d1740315
commit d25695056f
1 changed files with 20 additions and 3 deletions
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23
sound/pci/hda/hda_generic.c
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@ -32,7 +32,8 @@
struct hda_gnode {
hda_nid_t nid; /* NID of this widget */
unsigned short nconns; /* number of input connections */
hda_nid_t conn_list[HDA_MAX_CONNECTIONS]; /* input connections */
hda_nid_t *conn_list;
hda_nid_t slist[2]; /* temporay list */
unsigned int wid_caps; /* widget capabilities */
unsigned char type; /* widget type */
unsigned char pin_ctl; /* pin controls */
@ -84,6 +85,8 @@ static void snd_hda_generic_free(struct hda_codec *codec)
/* free all widgets */
list_for_each_safe(p, n, &spec->nid_list) {
struct hda_gnode *node = list_entry(p, struct hda_gnode, list);
if (node->conn_list != node->slist)
kfree(node->conn_list);
kfree(node);
}
kfree(spec);
@ -97,18 +100,32 @@ static int add_new_node(struct hda_codec *codec, struct hda_gspec *spec, hda_nid
{
struct hda_gnode *node;
int nconns;
hda_nid_t conn_list[HDA_MAX_CONNECTIONS];
node = kzalloc(sizeof(*node), GFP_KERNEL);
if (node == NULL)
return -ENOMEM;
node->nid = nid;
nconns = snd_hda_get_connections(codec, nid, node->conn_list, HDA_MAX_CONNECTIONS);
nconns = snd_hda_get_connections(codec, nid, conn_list,
HDA_MAX_CONNECTIONS);
if (nconns < 0) {
kfree(node);
return nconns;
}
if (nconns <= ARRAY_SIZE(node->slist))
node->conn_list = node->slist;
else {
node->conn_list = kmalloc(sizeof(hda_nid_t) * nconns,
GFP_KERNEL);
if (! node->conn_list) {
snd_printk(KERN_ERR "hda-generic: cannot malloc\n");
kfree(node);
return -ENOMEM;
}
}
memcpy(node->conn_list, conn_list, nconns);
node->nconns = nconns;
node->wid_caps = snd_hda_param_read(codec, nid, AC_PAR_AUDIO_WIDGET_CAP);
node->wid_caps = get_wcaps(codec, nid);
node->type = (node->wid_caps & AC_WCAP_TYPE) >> AC_WCAP_TYPE_SHIFT;
if (node->type == AC_WID_PIN) {