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Diffstat (limited to 'drivers/base/regmap/regmap.c')
-rw-r--r--drivers/base/regmap/regmap.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c
index 8894b99..9c1f856 100644
--- a/drivers/base/regmap/regmap.c
+++ b/drivers/base/regmap/regmap.c
@@ -2180,6 +2180,8 @@ int regmap_raw_read(struct regmap *map, unsigned int reg, void *val,
return -EINVAL;
if (reg % map->reg_stride)
return -EINVAL;
+ if (val_count == 0)
+ return -EINVAL;
map->lock(map->lock_arg);
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