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authorTakashi Iwai <tiwai@suse.de>2005-11-07 14:38:44 +0100
committerJaroslav Kysela <perex@suse.cz>2006-01-03 12:15:47 +0100
commitd031166fecac97fc6b5c35636deace8a3c9ec5f6 (patch)
tree744500b37b37d0411eae18e69c9261810f18b696 /sound/pci/hda
parent88026842b0a760145aa71d69e74fbc9ec118ca44 (diff)
[ALSA] hda-codec - Allocate amp hash array dynamically
Modules: HDA Codec driver Allocate amp hash array dynamically instead of static array. Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/hda')
-rw-r--r--sound/pci/hda/hda_codec.c22
-rw-r--r--sound/pci/hda/hda_codec.h3
2 files changed, 21 insertions, 4 deletions
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index 0dbeeaf6113..e7fb182f90e 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -465,6 +465,7 @@ static void snd_hda_codec_free(struct hda_codec *codec)
codec->bus->caddr_tbl[codec->addr] = NULL;
if (codec->patch_ops.free)
codec->patch_ops.free(codec);
+ kfree(codec->amp_info);
kfree(codec);
}
@@ -586,6 +587,8 @@ static void init_amp_hash(struct hda_codec *codec)
{
memset(codec->amp_hash, 0xff, sizeof(codec->amp_hash));
codec->num_amp_entries = 0;
+ codec->amp_info_size = 0;
+ codec->amp_info = NULL;
}
/* query the hash. allocate an entry if not found. */
@@ -603,9 +606,22 @@ static struct hda_amp_info *get_alloc_amp_hash(struct hda_codec *codec, u32 key)
}
/* add a new hash entry */
- if (codec->num_amp_entries >= ARRAY_SIZE(codec->amp_info)) {
- snd_printk(KERN_ERR "hda_codec: Tooooo many amps!\n");
- return NULL;
+ if (codec->num_amp_entries >= codec->amp_info_size) {
+ /* reallocate the array */
+ int new_size = codec->amp_info_size + 64;
+ struct hda_amp_info *new_info = kcalloc(new_size, sizeof(struct hda_amp_info),
+ GFP_KERNEL);
+ if (! new_info) {
+ snd_printk(KERN_ERR "hda_codec: can't malloc amp_info\n");
+ return NULL;
+ }
+ if (codec->amp_info) {
+ memcpy(new_info, codec->amp_info,
+ codec->amp_info_size * sizeof(struct hda_amp_info));
+ kfree(codec->amp_info);
+ }
+ codec->amp_info_size = new_size;
+ codec->amp_info = new_info;
}
cur = codec->num_amp_entries++;
info = &codec->amp_info[cur];
diff --git a/sound/pci/hda/hda_codec.h b/sound/pci/hda/hda_codec.h
index 1179d6cfa82..b0123adc569 100644
--- a/sound/pci/hda/hda_codec.h
+++ b/sound/pci/hda/hda_codec.h
@@ -545,7 +545,8 @@ struct hda_codec {
/* hash for amp access */
u16 amp_hash[32];
int num_amp_entries;
- struct hda_amp_info amp_info[128]; /* big enough? */
+ int amp_info_size;
+ struct hda_amp_info *amp_info;
struct semaphore spdif_mutex;
unsigned int spdif_status; /* IEC958 status bits */