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firmware: vpd: use kdtrndup when copying section key

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Instead of open-coding kstrndup with kzalloc + memcpy, let's use
the helper.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Reviewed-by: Guenter Roeck <groeck@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Dmitry Torokhov 2017-05-23 17:07:42 -07:00 committed by Greg Kroah-Hartman
parent 40fbb23881
commit 3eec6a1c0c
1 changed files with 2 additions and 3 deletions
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5
drivers/firmware/google/vpd.c
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@ -118,14 +118,13 @@ static int vpd_section_attrib_add(const u8 *key, s32 key_len,
info = kzalloc(sizeof(*info), GFP_KERNEL);
if (!info)
return -ENOMEM;
info->key = kzalloc(key_len + 1, GFP_KERNEL);
info->key = kstrndup(key, key_len, GFP_KERNEL);
if (!info->key) {
ret = -ENOMEM;
goto free_info;
}
memcpy(info->key, key, key_len);
sysfs_bin_attr_init(&info->bin_attr);
info->bin_attr.attr.name = info->key;
info->bin_attr.attr.mode = 0444;