diff options
| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2024-06-06 19:46:25 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2024-06-07 14:28:23 +0100 |
| commit | bce843065804f770ac469d32a3d455b9a997b55f (patch) | |
| tree | a6be8e732658b47dec317d07ece9f80e450dfc4c /drivers/base | |
| parent | f755d6955338bc704168629f70b380658a4918df (diff) | |
| download | linux-bce843065804f770ac469d32a3d455b9a997b55f.tar.gz linux-bce843065804f770ac469d32a3d455b9a997b55f.tar.bz2 linux-bce843065804f770ac469d32a3d455b9a997b55f.zip | |
regmap: maple: Switch to use kmemdup_array()
Let the kememdup_array() take care about multiplication and possible
overflows.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20240606164717.3031107-5-andriy.shevchenko@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/base')
| -rw-r--r-- | drivers/base/regmap/regcache-maple.c | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/drivers/base/regmap/regcache-maple.c b/drivers/base/regmap/regcache-maple.c index e42433404854..f0df2da6d522 100644 --- a/drivers/base/regmap/regcache-maple.c +++ b/drivers/base/regmap/regcache-maple.c @@ -132,9 +132,9 @@ static int regcache_maple_drop(struct regmap *map, unsigned int min, lower_index = mas.index; lower_last = min -1; - lower = kmemdup(entry, ((min - mas.index) * - sizeof(unsigned long)), - map->alloc_flags); + lower = kmemdup_array(entry, + min - mas.index, sizeof(*lower), + map->alloc_flags); if (!lower) { ret = -ENOMEM; goto out_unlocked; @@ -145,10 +145,9 @@ static int regcache_maple_drop(struct regmap *map, unsigned int min, upper_index = max + 1; upper_last = mas.last; - upper = kmemdup(&entry[max - mas.index + 1], - ((mas.last - max) * - sizeof(unsigned long)), - map->alloc_flags); + upper = kmemdup_array(&entry[max - mas.index + 1], + mas.last - max, sizeof(*upper), + map->alloc_flags); if (!upper) { ret = -ENOMEM; goto out_unlocked; |