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regmap: zero out the regmap on allocation

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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 <p.yadav@ti.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Pratyush Yadav 2020-09-24 10:04:11 +05:30 • committed by Tom Rini
parent ffb22f6b84
commit 97d8a6970a
1 changed files with 2 additions and 1 deletions
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3
drivers/core/regmap.c
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@ -30,8 +30,9 @@ DECLARE_GLOBAL_DATA_PTR;
static struct regmap *regmap_alloc(int count) static struct regmap *regmap_alloc(int count)
{ {
struct regmap *map; struct regmap *map;
size_t size = sizeof(*map) + sizeof(map->ranges[0]) * count;
map = malloc(sizeof(*map) + sizeof(map->ranges[0]) * count); map = calloc(1, size);
if (!map) if (!map)
return NULL; return NULL;
map->range_count = count; map->range_count = count;