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| author | Dimitris Papastamos <dp@opensource.wolfsonmicro.com> | 2010-11-29 10:24:54 +0000 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2010-11-29 12:43:49 +0000 |
| commit | 7a33d4ce8231f789548ce6e25f75894a6c8508a5 (patch) | |
| tree | 638fea252cd45864275a2068f545d1418f838d34 /sound/soc/soc-cache.c | |
| parent | d482337eaba627348ffb8b7c0752d65e16667cd9 (diff) | |
| download | linux-7a33d4ce8231f789548ce6e25f75894a6c8508a5.tar.gz linux-7a33d4ce8231f789548ce6e25f75894a6c8508a5.tar.bz2 linux-7a33d4ce8231f789548ce6e25f75894a6c8508a5.zip | |
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>
Diffstat (limited to 'sound/soc/soc-cache.c')
| -rw-r--r-- | sound/soc/soc-cache.c | 28 |
1 files changed, 21 insertions, 7 deletions
diff --git a/sound/soc/soc-cache.c b/sound/soc/soc-cache.c index 6c0589e3fefb..e5b18889a493 100644 --- a/sound/soc/soc-cache.c +++ b/sound/soc/soc-cache.c @@ -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); } |