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regmap: Return a sensible error code if we fail to read the cache

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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>
This commit is contained in:
Mark Brown
2011-10-09 13:23:31 +01:00
parent f094fea68f
commit 6e6ace00a0
4 changed files with 7 additions and 9 deletions
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4
drivers/base/regmap/regcache-lzo.c
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@@ -232,7 +232,6 @@ static int regcache_lzo_read(struct regmap *map,
size_t blksize, tmp_dst_len;
void *tmp_dst;
*value = 0;
/* index of the compressed lzo block */
blkindex = regcache_lzo_get_blkindex(map, reg);
/* register index within the decompressed block */
@@ -261,7 +260,8 @@ static int regcache_lzo_read(struct regmap *map,
/* restore the pointer and length of the compressed block */
lzo_block->dst = tmp_dst;
lzo_block->dst_len = tmp_dst_len;
return 0;
return ret;
}
static int regcache_lzo_write(struct regmap *map,