From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Wei-Ning Huang <wnhuang@google.com>,
Julius Werner <jwerner@chromium.org>,
Guenter Roeck <groeck@chromium.org>,
linux-kernel@vger.kernel.org
Subject: [PATCH 2/8] firmware: vpd: use kdtrndup when copying section key
Date: Tue, 23 May 2017 17:07:42 -0700 [thread overview]
Message-ID: <20170524000748.39310-2-dmitry.torokhov@gmail.com> (raw)
In-Reply-To: <20170524000748.39310-1-dmitry.torokhov@gmail.com>
Instead of open-coding kstrndup with kzalloc + memcpy, let's use
the helper.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
drivers/firmware/google/vpd.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/drivers/firmware/google/vpd.c b/drivers/firmware/google/vpd.c
index 23a24a6d02c2..acf3f3cdc3f8 100644
--- a/drivers/firmware/google/vpd.c
+++ b/drivers/firmware/google/vpd.c
@@ -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;
--
2.13.0.219.gdb65acc882-goog
next prev parent reply other threads:[~2017-05-24 0:07 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-24 0:07 [PATCH 1/8] firmware: vpd: do not leave freed section attributes to the list Dmitry Torokhov
2017-05-24 0:07 ` Dmitry Torokhov [this message]
2017-05-24 17:13 ` [PATCH 2/8] firmware: vpd: use kdtrndup when copying section key Guenter Roeck
2017-05-24 0:07 ` [PATCH 3/8] firmware: vpd: avoid potential use-after-free when destroying section Dmitry Torokhov
2017-05-24 17:15 ` Guenter Roeck
2017-05-24 0:07 ` [PATCH 4/8] firmware: vpd: do not leak kobjects Dmitry Torokhov
2017-05-24 17:16 ` Guenter Roeck
2017-05-24 0:07 ` [PATCH 5/8] firmware: vpd: use kasprintf() when forming name of 'raw' attribute Dmitry Torokhov
2017-05-24 17:18 ` Guenter Roeck
2017-05-24 0:07 ` [PATCH 6/8] firmware: vpd: do not clear statically allocated data Dmitry Torokhov
2017-05-24 17:19 ` Guenter Roeck
2017-05-24 0:07 ` [PATCH 7/8] firmware: vpd: remove platform driver Dmitry Torokhov
2017-05-24 17:22 ` Guenter Roeck
2017-05-25 0:04 ` Julius Werner
2017-05-25 2:38 ` Dmitry Torokhov
2017-05-24 0:07 ` [PATCH 8/8] firmware: vpd: fix confusion between memremap and iounmap Dmitry Torokhov
2017-05-24 17:23 ` Guenter Roeck
2017-05-25 13:41 ` Greg Kroah-Hartman
2017-05-24 17:13 ` [PATCH 1/8] firmware: vpd: do not leave freed section attributes to the list Guenter Roeck
2017-05-25 13:40 ` Greg Kroah-Hartman
2017-05-25 16:35 ` Dmitry Torokhov
2017-05-25 16:50 ` Greg Kroah-Hartman
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