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ASoC: soc-cache: Add error checking in the *_cache_sync functions 

Ensure that we report any errors encountered during reads/writes
in the cache syncing functions.

Remove redundant newline in the source code.

Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Dimitris Papastamos 2010-11-29 10:24:54 +00:00 committed by Mark Brown
parent d482337eab
commit 7a33d4ce82
1 changed files with 21 additions and 7 deletions
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28
sound/soc/soc-cache.c
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@ -792,7 +792,6 @@ static struct snd_soc_rbtree_node *snd_soc_rbtree_lookup(
return NULL;
}
static int snd_soc_rbtree_insert(struct rb_root *root,
struct snd_soc_rbtree_node *rbnode)
{
@ -826,14 +825,19 @@ static int snd_soc_rbtree_cache_sync(struct snd_soc_codec *codec)
struct rb_node *node;
struct snd_soc_rbtree_node *rbnode;
unsigned int val;
int ret;
rbtree_ctx = codec->reg_cache;
for (node = rb_first(&rbtree_ctx->root); node; node = rb_next(node)) {
rbnode = rb_entry(node, struct snd_soc_rbtree_node, node);
if (rbnode->value == rbnode->defval)
continue;
snd_soc_cache_read(codec, rbnode->reg, &val);
snd_soc_write(codec, rbnode->reg, val);
ret = snd_soc_cache_read(codec, rbnode->reg, &val);
if (ret)
return ret;
ret = snd_soc_write(codec, rbnode->reg, val);
if (ret)
return ret;
dev_dbg(codec->dev, "Synced register %#x, value = %#x\n",
rbnode->reg, val);
}
@ -1110,11 +1114,16 @@ static int snd_soc_lzo_cache_sync(struct snd_soc_codec *codec)
struct snd_soc_lzo_ctx **lzo_blocks;
unsigned int val;
int i;
int ret;
lzo_blocks = codec->reg_cache;
for_each_set_bit(i, lzo_blocks[0]->sync_bmp, lzo_blocks[0]->sync_bmp_nbits) {
snd_soc_cache_read(codec, i, &val);
snd_soc_write(codec, i, val);
ret = snd_soc_cache_read(codec, i, &val);
if (ret)
return ret;
ret = snd_soc_write(codec, i, val);
if (ret)
return ret;
dev_dbg(codec->dev, "Synced register %#x, value = %#x\n",
i, val);
}
@ -1390,12 +1399,15 @@ err_tofree:
static int snd_soc_flat_cache_sync(struct snd_soc_codec *codec)
{
int i;
int ret;
struct snd_soc_codec_driver *codec_drv;
unsigned int val;
codec_drv = codec->driver;
for (i = 0; i < codec_drv->reg_cache_size; ++i) {
snd_soc_cache_read(codec, i, &val);
ret = snd_soc_cache_read(codec, i, &val);
if (ret)
return ret;
if (codec_drv->reg_cache_default) {
switch (codec_drv->reg_word_size) {
case 1: {
@ -1418,7 +1430,9 @@ static int snd_soc_flat_cache_sync(struct snd_soc_codec *codec)
BUG();
}
}
snd_soc_write(codec, i, val);
ret = snd_soc_write(codec, i, val);
if (ret)
return ret;
dev_dbg(codec->dev, "Synced register %#x, value = %#x\n",
i, val);
}