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nvmet: replace kstrndup() with kmemdup_nul() 

It is more efficient to use kmemdup_nul() if the size is known exactly.

The doc in kernel:
"Note: Use kmemdup_nul() instead if the size is known exactly."

Signed-off-by: Chen Zhou <chenzhou10@huawei.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Chen Zhou 2020-05-08 19:59:06 +08:00 committed by Christoph Hellwig
parent 263c61581a
commit 09bb8986c9
1 changed files with 2 additions and 2 deletions
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4
drivers/nvme/target/configfs.c
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@ -324,7 +324,7 @@ static ssize_t nvmet_ns_device_path_store(struct config_item *item,
kfree(ns->device_path);
ret = -ENOMEM;
ns->device_path = kstrndup(page, len, GFP_KERNEL);
ns->device_path = kmemdup_nul(page, len, GFP_KERNEL);
if (!ns->device_path)
goto out_unlock;
@ -960,7 +960,7 @@ static ssize_t nvmet_subsys_attr_model_store(struct config_item *item,
return -EINVAL;
}
new_model_number = kstrndup(page, len, GFP_KERNEL);
new_model_number = kmemdup_nul(page, len, GFP_KERNEL);
if (!new_model_number)
return -ENOMEM;