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authorAndy Shevchenko <andriy.shevchenko@linux.intel.com>2024-08-14 14:54:07 +0200
committerStephen Boyd <sboyd@kernel.org>2024-08-15 02:37:25 +0200
commit0da7faca5319a07a2f02df3e17e665fd7718c9b9 (patch)
tree08162d883d7bc3504d084b10a985bc558e9efd43
parentclk: hisilicon: Remove unnecessary local variable (diff)
downloadlinux-0da7faca5319a07a2f02df3e17e665fd7718c9b9.tar.xz
linux-0da7faca5319a07a2f02df3e17e665fd7718c9b9.zip
clk: mmp: Switch to use kmemdup_array()
Let the kmemdup_array() take care about multiplication and possible overflows. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20240814125513.2637955-2-andriy.shevchenko@linux.intel.com Signed-off-by: Stephen Boyd <sboyd@kernel.org>
-rw-r--r--drivers/clk/mmp/clk-mix.c10
1 files changed, 4 insertions, 6 deletions
diff --git a/drivers/clk/mmp/clk-mix.c b/drivers/clk/mmp/clk-mix.c
index 454d131f475e..07ac9e6937e5 100644
--- a/drivers/clk/mmp/clk-mix.c
+++ b/drivers/clk/mmp/clk-mix.c
@@ -447,7 +447,6 @@ struct clk *mmp_clk_register_mix(struct device *dev,
struct mmp_clk_mix *mix;
struct clk *clk;
struct clk_init_data init;
- size_t table_bytes;
mix = kzalloc(sizeof(*mix), GFP_KERNEL);
if (!mix)
@@ -461,8 +460,8 @@ struct clk *mmp_clk_register_mix(struct device *dev,
memcpy(&mix->reg_info, &config->reg_info, sizeof(config->reg_info));
if (config->table) {
- table_bytes = sizeof(*config->table) * config->table_size;
- mix->table = kmemdup(config->table, table_bytes, GFP_KERNEL);
+ mix->table = kmemdup_array(config->table, config->table_size,
+ sizeof(*mix->table), GFP_KERNEL);
if (!mix->table)
goto free_mix;
@@ -470,9 +469,8 @@ struct clk *mmp_clk_register_mix(struct device *dev,
}
if (config->mux_table) {
- table_bytes = sizeof(u32) * num_parents;
- mix->mux_table = kmemdup(config->mux_table, table_bytes,
- GFP_KERNEL);
+ mix->mux_table = kmemdup_array(config->mux_table, num_parents,
+ sizeof(*mix->mux_table), GFP_KERNEL);
if (!mix->mux_table) {
kfree(mix->table);
goto free_mix;