From: Q1IQ <fufuyqqqqqq@gmail.com>
To: ioana.ciornei@nxp.com, davem@davemloft.net, kuba@kernel.org
Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
lyz_cs@pku.edu.cn, Q1IQ <fufuyqqqqqq@gmail.com>
Subject: [PATCH] dpaa2 ethernet switch driver: Fix memory leak in dpaa2_switch_acl_entry_add()
Date: Tue, 1 Mar 2022 17:34:44 +0800 [thread overview]
Message-ID: <20220301093444.66863-1-fufuyqqqqqq@gmail.com> (raw)
[why]
The error handling branch did not properly free the memory of cmd_buf
before return, which would cause memory leak.
[how]
Fix this by adding kfree to the error handling branch.
Signed-off-by: Q1IQ <fufuyqqqqqq@gmail.com>
---
drivers/net/ethernet/freescale/dpaa2/dpaa2-switch-flower.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch-flower.c b/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch-flower.c
index cacd454ac696..4d07aee07f4c 100644
--- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch-flower.c
+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch-flower.c
@@ -132,6 +132,7 @@ int dpaa2_switch_acl_entry_add(struct dpaa2_switch_filter_block *filter_block,
DMA_TO_DEVICE);
if (unlikely(dma_mapping_error(dev, acl_entry_cfg->key_iova))) {
dev_err(dev, "DMA mapping failed\n");
+ kfree(cmd_buff);
return -EFAULT;
}
@@ -142,6 +143,7 @@ int dpaa2_switch_acl_entry_add(struct dpaa2_switch_filter_block *filter_block,
DMA_TO_DEVICE);
if (err) {
dev_err(dev, "dpsw_acl_add_entry() failed %d\n", err);
+ kfree(cmd_buff);
return err;
}
--
2.30.1 (Apple Git-130)
next reply other threads:[~2022-03-01 9:36 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-01 9:34 Q1IQ [this message]
2022-03-01 12:14 ` [PATCH] dpaa2 ethernet switch driver: Fix memory leak in dpaa2_switch_acl_entry_add() Denis Kirjanov
2022-03-01 14:15 ` [PATCH v1] dpaa2-switch: fix memory leak of dpaa2_switch_acl_entry_add Yeqi Fu
2022-03-01 17:03 ` Ioana Ciornei
2022-03-02 1:41 ` Jakub Kicinski
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=20220301093444.66863-1-fufuyqqqqqq@gmail.com \
--to=fufuyqqqqqq@gmail.com \
--cc=davem@davemloft.net \
--cc=ioana.ciornei@nxp.com \
--cc=kuba@kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=lyz_cs@pku.edu.cn \
--cc=netdev@vger.kernel.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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).