From: lixiubo <lixi...@cmss.chinamobile.com>
Replace kmalloc with specialized function kmalloc_array when the size
is a multiplication of : number * size
Signed-off-by: lixiubo <lixi...@cmss.chinamobile.com>
---
drivers/base/regmap/regcache-lzo.c | 4 ++--
drivers/base/regmap/regcache-rbtree.c | 4 ++--
drivers/base/regmap/regmap-irq.c | 5 +++--
3 files changed, 7 insertions(+), 6 deletions(-)
diff --git a/drivers/base/regmap/regcache-lzo.c
b/drivers/base/regmap/regcache-lzo.c
index 1f4eef2..0c652243 100644
--- a/drivers/base/regmap/regcache-lzo.c
+++ b/drivers/base/regmap/regcache-lzo.c
@@ -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;
diff --git a/drivers/base/regmap/regcache-rbtree.c
b/drivers/base/regmap/regcache-rbtree.c
index 3b6cfed..9d7ced5 100644
--- a/drivers/base/regmap/regcache-rbtree.c
+++ b/drivers/base/regmap/regcache-rbtree.c
@@ -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;
diff --git a/drivers/base/regmap/regmap-irq.c b/drivers/base/regmap/regmap-irq.c
index 78d4805..79014be 100644
--- a/drivers/base/regmap/regmap-irq.c
+++ b/drivers/base/regmap/regmap-irq.c
@@ -400,8 +400,9 @@ 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;
}
--
1.8.3.1
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
