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authorIonut Nicu <ioan.nicu.ext@nsn.com>2013-08-09 12:09:15 +0200
committerMark Brown <broonie@linaro.org>2013-08-09 12:47:29 +0100
commit1767da9e8e9a1dc1416d6bb1029b8cf5659dac2a (patch)
treee02498d7cebb9e5b1ba71fdfe36af52dec9fff18 /drivers/base/regmap/internal.h
parentc095ba7224d8edc71dcef0d655911399a8bd4a3f (diff)
regmap: fix regcache_reg_present() for empty cache
In the initial case when no reg_defaults values are provided and no register value was added to the cache yet, the cache_present bitmap is NULL. If this function is invoked for any register it should return false (i.e. the register is not cached) instead of true. Signed-off-by: Ionut Nicu <ioan.nicu.ext@nsn.com> Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'drivers/base/regmap/internal.h')
-rw-r--r--drivers/base/regmap/internal.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/base/regmap/internal.h b/drivers/base/regmap/internal.h
index 29c83160ca29..5308e3e870ba 100644
--- a/drivers/base/regmap/internal.h
+++ b/drivers/base/regmap/internal.h
@@ -223,7 +223,7 @@ int regcache_set_reg_present(struct regmap *map, unsigned int reg);
static inline bool regcache_reg_present(struct regmap *map, unsigned int reg)
{
if (!map->cache_present)
- return true;
+ return false;
if (reg > map->cache_present_nbits)
return false;
return map->cache_present[BIT_WORD(reg)] & BIT_MASK(reg);