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regmap: replace kmalloc with kmalloc_array 

Replace kmalloc with specialized function kmalloc_array when the size
is a multiplication of : number * size

Signed-off-by: lixiubo <lixiubo@cmss.chinamobile.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
hifive-unleashed-5.1
lixiubo 2015-11-20 18:06:30 +08:00 committed by Mark Brown
parent eeda1bd69d
commit 549e08a0a9
3 changed files with 7 additions and 6 deletions
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4
drivers/base/regmap/regcache-lzo.c
View File

@ -152,8 +152,8 @@ static int regcache_lzo_init(struct regmap *map)
* that register.
*/
bmp_size = map->num_reg_defaults_raw;
sync_bmp = kmalloc(BITS_TO_LONGS(bmp_size) * sizeof(long),
GFP_KERNEL);
sync_bmp = kmalloc_array(BITS_TO_LONGS(bmp_size), sizeof(long),
GFP_KERNEL);
if (!sync_bmp) {
ret = -ENOMEM;
goto err;

4
drivers/base/regmap/regcache-rbtree.c
View File

@ -361,8 +361,8 @@ regcache_rbtree_node_alloc(struct regmap *map, unsigned int reg)
rbnode->base_reg = reg;
}
rbnode->block = kmalloc(rbnode->blklen * map->cache_word_size,
GFP_KERNEL);
rbnode->block = kmalloc_array(rbnode->blklen, map->cache_word_size,
GFP_KERNEL);
if (!rbnode->block)
goto err_free;

5
drivers/base/regmap/regmap-irq.c
View File

@ -422,8 +422,9 @@ int regmap_add_irq_chip(struct regmap *map, int irq, int irq_flags,
if (!map->use_single_read && map->reg_stride == 1 &&
d->irq_reg_stride == 1) {
d->status_reg_buf = kmalloc(map->format.val_bytes *
chip->num_regs, GFP_KERNEL);
d->status_reg_buf = kmalloc_array(chip->num_regs,
map->format.val_bytes,
GFP_KERNEL);
if (!d->status_reg_buf)
goto err_alloc;
}