From: Kangjie Lu <kjlu@umn.edu>
To: kjlu@umn.edu
Cc: pakki001@umn.edu,
Michael Hennerich <michael.hennerich@analog.com>,
Alexander Aring <alex.aring@gmail.com>,
Stefan Schmidt <stefan@datenfreihafen.org>,
"David S. Miller" <davem@davemloft.net>,
linux-wpan@vger.kernel.org, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: [PATCH] net: ieee802154: fix a potential NULL pointer dereference
Date: Mon, 11 Mar 2019 02:25:17 -0500 [thread overview]
Message-ID: <20190311072517.29740-1-kjlu@umn.edu> (raw)
In case alloc_ordered_workqueue fails, the fix releases
sources and returns -ENOMEM to avoid NULL pointer dereference.
Signed-off-by: Kangjie Lu <kjlu@umn.edu>
---
drivers/net/ieee802154/adf7242.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/net/ieee802154/adf7242.c b/drivers/net/ieee802154/adf7242.c
index cd1d8faccca5..cd6b95e673a5 100644
--- a/drivers/net/ieee802154/adf7242.c
+++ b/drivers/net/ieee802154/adf7242.c
@@ -1268,6 +1268,10 @@ static int adf7242_probe(struct spi_device *spi)
INIT_DELAYED_WORK(&lp->work, adf7242_rx_cal_work);
lp->wqueue = alloc_ordered_workqueue(dev_name(&spi->dev),
WQ_MEM_RECLAIM);
+ if (unlikely(!lp->wqueue)) {
+ ret = -ENOMEM;
+ goto err_hw_init;
+ }
ret = adf7242_hw_init(lp);
if (ret)
--
2.17.1
next reply other threads:[~2019-03-11 7:25 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-11 7:25 Kangjie Lu [this message]
2019-03-11 7:30 ` Hennerich, Michael
2019-03-13 9:08 ` Stefan Schmidt
2019-03-13 9:09 ` Stefan Schmidt
2019-03-13 9:09 ` Stefan Schmidt
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=20190311072517.29740-1-kjlu@umn.edu \
--to=kjlu@umn.edu \
--cc=alex.aring@gmail.com \
--cc=davem@davemloft.net \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-wpan@vger.kernel.org \
--cc=michael.hennerich@analog.com \
--cc=netdev@vger.kernel.org \
--cc=pakki001@umn.edu \
--cc=stefan@datenfreihafen.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
all inboxes | Powered by JetHome®