regmap: replace kzalloc with kcalloc

Replace kzalloc with specialized function kcalloc when the size is
a multiplication of : number * sizeof

Signed-off-by: lixiubo <lixiubo@cmss.chinamobile.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

4 files changed, 9 insertions, 8 deletions

diff --git a/drivers/base/regmap/regcache-flat.c b/drivers/base/regmap/regcache-flat.c
index 0246f44ded74..686c9e0b930e 100644
--- a/drivers/base/regmap/regcache-flat.c
+++ b/drivers/base/regmap/regcache-flat.c
@@ -21,7 +21,7 @@ static int regcache_flat_init(struct regmap *map)
         int i;
         unsigned int *cache;
 
-        map->cache = kzalloc(sizeof(unsigned int) * (map->max_register + 1),
+        map->cache = kcalloc(map->max_register + 1, sizeof(unsigned int),
                              GFP_KERNEL);
         if (!map->cache)
                 return -ENOMEM;
diff --git a/drivers/base/regmap/regcache-lzo.c b/drivers/base/regmap/regcache-lzo.c
index 736e0d378567..52f69381c070 100644
--- a/drivers/base/regmap/regcache-lzo.c
+++ b/drivers/base/regmap/regcache-lzo.c
@@ -139,7 +139,7 @@ static int regcache_lzo_init(struct regmap *map)
         ret = 0;
 
         blkcount = regcache_lzo_block_count(map);
-        map->cache = kzalloc(blkcount * sizeof *lzo_blocks,
+        map->cache = kcalloc(blkcount, sizeof(*lzo_blocks),
                              GFP_KERNEL);
         if (!map->cache)
                 return -ENOMEM;
diff --git a/drivers/base/regmap/regcache-rbtree.c b/drivers/base/regmap/regcache-rbtree.c
index 56486d92c4e7..3b6cfede2fd9 100644
--- a/drivers/base/regmap/regcache-rbtree.c
+++ b/drivers/base/regmap/regcache-rbtree.c
@@ -366,8 +366,9 @@ regcache_rbtree_node_alloc(struct regmap *map, unsigned int reg)
         if (!rbnode->block)
                 goto err_free;
 
-        rbnode->cache_present = kzalloc(BITS_TO_LONGS(rbnode->blklen) *
-                sizeof(*rbnode->cache_present), GFP_KERNEL);
+        rbnode->cache_present = kcalloc(BITS_TO_LONGS(rbnode->blklen),
+                                        sizeof(*rbnode->cache_present),
+                                        GFP_KERNEL);
         if (!rbnode->cache_present)
                 goto err_free_block;
 
diff --git a/drivers/base/regmap/regmap-irq.c b/drivers/base/regmap/regmap-irq.c
index 8d16db533527..4ebbe21ded82 100644
--- a/drivers/base/regmap/regmap-irq.c
+++ b/drivers/base/regmap/regmap-irq.c
@@ -386,23 +386,23 @@ int regmap_add_irq_chip(struct regmap *map, int irq, int irq_flags,
         if (!d)
                 return -ENOMEM;
 
-        d->status_buf = kzalloc(sizeof(unsigned int) * chip->num_regs,
+        d->status_buf = kcalloc(chip->num_regs, sizeof(unsigned int),
                                 GFP_KERNEL);
         if (!d->status_buf)
                 goto err_alloc;
 
-        d->mask_buf = kzalloc(sizeof(unsigned int) * chip->num_regs,
+        d->mask_buf = kcalloc(chip->num_regs, sizeof(unsigned int),
                               GFP_KERNEL);
         if (!d->mask_buf)
                 goto err_alloc;
 
-        d->mask_buf_def = kzalloc(sizeof(unsigned int) * chip->num_regs,
+        d->mask_buf_def = kcalloc(chip->num_regs, sizeof(unsigned int),
                                   GFP_KERNEL);
         if (!d->mask_buf_def)
                 goto err_alloc;
 
         if (chip->wake_base) {
-                d->wake_buf = kzalloc(sizeof(unsigned int) * chip->num_regs,
+                d->wake_buf = kcalloc(chip->num_regs, sizeof(unsigned int),
                                       GFP_KERNEL);
                 if (!d->wake_buf)
                         goto err_alloc;