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regcache: flat: Remove unneeded check and error message for -ENOMEM 

There is a convention in the kernel to avoid error messages
in the cases of -ENOMEM errors. Besides that, the idea behind
using struct_size() and other macros from overflow.h is
to saturate the size that the following allocation call will
definitely fail, hence the check and the error messaging added
in regcache_flat_init() are redundant. Remove them.

Acked-by: Sander Vanheule <sander@svanheule.net>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://patch.msgid.link/20251031080540.3970776-4-andriy.shevchenko@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Andy Shevchenko 2025-10-31 09:03:18 +01:00 committed by Mark Brown
parent bda6f8749c
commit 27fef3048f
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GPG Key ID: 24D68B725D5487D0
1 changed files with 1 additions and 9 deletions
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10
drivers/base/regmap/regcache-flat.c
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@ -30,7 +30,6 @@ struct regcache_flat_data {
static int regcache_flat_init(struct regmap *map)
{
int i;
size_t cache_data_size;
unsigned int cache_size;
struct regcache_flat_data *cache;
@ -38,14 +37,7 @@ static int regcache_flat_init(struct regmap *map)
return -EINVAL;
cache_size = regcache_flat_get_index(map, map->max_register) + 1;
cache_data_size = struct_size(cache, data, cache_size);
if (cache_data_size == SIZE_MAX) {
dev_err(map->dev, "cannot allocate regmap cache");
return -ENOMEM;
}
cache = kzalloc(cache_data_size, map->alloc_flags);
cache = kzalloc(struct_size(cache, data, cache_size), map->alloc_flags);
if (!cache)
return -ENOMEM;