diff options
author | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2011-10-09 08:23:31 -0400 |
---|---|---|
committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2011-10-10 05:24:03 -0400 |
commit | 6e6ace00a045251bd172b9b9c2379857bbff3dc7 (patch) | |
tree | 63a4d6686b3955ca16e7727883445209de67074b /drivers/base/regmap/regcache-rbtree.c | |
parent | f094fea68f0575286c55c06141cc89ffd0049024 (diff) |
regmap: Return a sensible error code if we fail to read the cache
If a register isn't cached then let callers know that so they can fall
back or error handle appropriately.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com>
Diffstat (limited to 'drivers/base/regmap/regcache-rbtree.c')
-rw-r--r-- | drivers/base/regmap/regcache-rbtree.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/base/regmap/regcache-rbtree.c b/drivers/base/regmap/regcache-rbtree.c index 40f23dd8478c..887dbce63aff 100644 --- a/drivers/base/regmap/regcache-rbtree.c +++ b/drivers/base/regmap/regcache-rbtree.c | |||
@@ -193,8 +193,7 @@ static int regcache_rbtree_read(struct regmap *map, | |||
193 | *value = regcache_rbtree_get_register(rbnode, reg_tmp, | 193 | *value = regcache_rbtree_get_register(rbnode, reg_tmp, |
194 | map->cache_word_size); | 194 | map->cache_word_size); |
195 | } else { | 195 | } else { |
196 | /* uninitialized registers default to 0 */ | 196 | return -ENOENT; |
197 | *value = 0; | ||
198 | } | 197 | } |
199 | 198 | ||
200 | return 0; | 199 | return 0; |