[PATCH] regmap: fix return value in regcache-indexed read call.

[Michael Williamson <michael.williamson@criticallink.com>]

The regcache_read() API for regmap requires a 0 return value for
successful cached reads.  The read method for the indexed type
cache implementation is returning the positive map offset for a
successful read, which is incorrect.  Fix it.

Signed-off-by: Michael Williamson <michael.williamson@criticallink.com>
---
 drivers/base/regmap/regcache-indexed.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/drivers/base/regmap/regcache-indexed.c b/drivers/base/regmap/regcache-indexed.c
index 507731a..ade5b8c 100644
--- a/drivers/base/regmap/regcache-indexed.c
+++ b/drivers/base/regmap/regcache-indexed.c
@@ -22,8 +22,10 @@ static int regcache_indexed_read(struct regmap *map, unsigned int reg,
 	ret = regcache_lookup_reg(map, reg);
 	if (ret >= 0)
 		*value = map->reg_defaults[ret].def;
+	else
+		return ret;
 
-	return ret;
+	return 0;
 }
 
 static int regcache_indexed_write(struct regmap *map, unsigned int reg,
-- 
1.7.0.4