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From: Pratyush Yadav
To: Simon Glass ,
CC: Pratyush Yadav , Vignesh Raghavendra ,
Sekhar Nori
Subject: [PATCH 2/8] regmap: zero out the regmap on allocation
Date: Wed, 27 May 2020 18:22:02 +0530
Message-ID: <20200527125208.24881-3-p.yadav@ti.com>
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Some fields will be introduced in the regmap structure that should be
set to 0 by default. So, once we allocate a regmap, make sure it is
zeroed out to avoid unexpected defaults for those values.
Signed-off-by: Pratyush Yadav
Reviewed-by: Simon Glass
---
drivers/core/regmap.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/core/regmap.c b/drivers/core/regmap.c
index 74225361fd..24651fb3ec 100644
--- a/drivers/core/regmap.c
+++ b/drivers/core/regmap.c
@@ -30,10 +30,12 @@ DECLARE_GLOBAL_DATA_PTR;
static struct regmap *regmap_alloc(int count)
{
struct regmap *map;
+ size_t size = sizeof(*map) + sizeof(map->ranges[0]) * count;
- map = malloc(sizeof(*map) + sizeof(map->ranges[0]) * count);
+ map = malloc(size);
if (!map)
return NULL;
+ memset(map, 0, size);
map->range_count = count;
return map;