[PATCH] iwlwifi: Use kmemdup instead of duplicating it in iwl_parse_nvm_mcc_info

From: YueHaibing
Date: Wed Sep 05 2018 - 23:14:56 EST


Replace calls to kmalloc followed by a memcpy with a direct call to
kmemdup.

Patch found using coccinelle.

Signed-off-by: YueHaibing <yuehaibing@xxxxxxxxxx>
---
drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c b/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c
index 27db4a3..bd91657 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c
@@ -1113,14 +1113,12 @@ iwl_parse_nvm_mcc_info(struct device *dev, const struct iwl_cfg *cfg,
regd_to_copy = sizeof(struct ieee80211_regdomain) +
valid_rules * sizeof(struct ieee80211_reg_rule);

- copy_rd = kzalloc(regd_to_copy, GFP_KERNEL);
+ copy_rd = kmemdup(reg, regd_to_copy, GFP_KERNEL);
if (!copy_rd) {
copy_rd = ERR_PTR(-ENOMEM);
goto out;
}

- memcpy(copy_rd, regd, regd_to_copy);
-
out:
kfree(regdb_ptrs);
kfree(regd);
--
2.7.0