From: Zhipeng Lu <alexious@zju.edu.cn>
To: alexious@zju.edu.cn
Cc: Kalle Valo <kvalo@kernel.org>,
"John W. Linville" <linville@tuxdriver.com>,
Marcelo Tosatti <marcelo@kvack.org>,
libertas-dev@lists.infradead.org, linux-wireless@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: [PATCH] libertas: fix some memleaks in lbs_allocate_cmd_buffer
Date: Fri, 26 Jan 2024 15:53:34 +0800 [thread overview]
Message-ID: <20240126075336.2825608-1-alexious@zju.edu.cn> (raw)
In the for statement of lbs_allocate_cmd_buffer, if the allocation of
cmdarray[i].cmdbuf fails, both cmdarray and cmdarray[i].cmdbuf needs to
be freed. Otherwise, there will be memleaks in lbs_allocate_cmd_buffer.
Fixes: 876c9d3aeb98 ("[PATCH] Marvell Libertas 8388 802.11b/g USB driver")
Signed-off-by: Zhipeng Lu <alexious@zju.edu.cn>
---
drivers/net/wireless/marvell/libertas/cmd.c | 13 +++++++++++--
1 file changed, 11 insertions(+), 2 deletions(-)
diff --git a/drivers/net/wireless/marvell/libertas/cmd.c b/drivers/net/wireless/marvell/libertas/cmd.c
index 104d2b6dc9af..5a525da434c2 100644
--- a/drivers/net/wireless/marvell/libertas/cmd.c
+++ b/drivers/net/wireless/marvell/libertas/cmd.c
@@ -1132,7 +1132,7 @@ int lbs_allocate_cmd_buffer(struct lbs_private *priv)
if (!cmdarray[i].cmdbuf) {
lbs_deb_host("ALLOC_CMD_BUF: ptempvirtualaddr is NULL\n");
ret = -1;
- goto done;
+ goto free_cmd_array;
}
}
@@ -1140,8 +1140,17 @@ int lbs_allocate_cmd_buffer(struct lbs_private *priv)
init_waitqueue_head(&cmdarray[i].cmdwait_q);
lbs_cleanup_and_insert_cmd(priv, &cmdarray[i]);
}
- ret = 0;
+ return 0;
+free_cmd_array:
+ for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
+ if (cmdarray[i].cmdbuf) {
+ kfree(cmdarray[i].cmdbuf);
+ cmdarray[i].cmdbuf = NULL;
+ }
+ }
+ kfree(priv->cmd_array);
+ priv->cmd_array = NULL;
done:
return ret;
}
--
2.34.1
next reply other threads:[~2024-01-26 7:58 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-01-26 7:53 Zhipeng Lu [this message]
2024-02-05 18:15 ` wifi: libertas: fix some memleaks in lbs_allocate_cmd_buffer() Kalle Valo
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20240126075336.2825608-1-alexious@zju.edu.cn \
--to=alexious@zju.edu.cn \
--cc=kvalo@kernel.org \
--cc=libertas-dev@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-wireless@vger.kernel.org \
--cc=linville@tuxdriver.com \
--cc=marcelo@kvack.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.