From: Pavel Machek <pavel@ucw.cz>
To: linux-kernel@vger.kernel.org, dmaengine@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, dan.j.williams@intel.com,
vkoul@kernel.org, ludovic.desroches@microchip.com,
stable@vger.kernel.org, Greg KH <greg@kroah.com>
Subject: [PATCH 4.19] dmaengine: at_hdmac: Fix memory leak
Date: Sun, 20 Sep 2020 10:28:38 +0200 [thread overview]
Message-ID: <20200920082838.GA813@amd> (raw)
[-- Attachment #1: Type: text/plain, Size: 793 bytes --]
This fixes memory leak in at_hdmac. Mainline does not have the same
problem.
Signed-off-by: Pavel Machek (CIP) <pavel@denx.de>
diff --git a/drivers/dma/at_hdmac.c b/drivers/dma/at_hdmac.c
index 86427f6ba78c..0847b2055857 100644
--- a/drivers/dma/at_hdmac.c
+++ b/drivers/dma/at_hdmac.c
@@ -1714,8 +1714,10 @@ static struct dma_chan *at_dma_xlate(struct of_phandle_args *dma_spec,
atslave->dma_dev = &dmac_pdev->dev;
chan = dma_request_channel(mask, at_dma_filter, atslave);
- if (!chan)
+ if (!chan) {
+ kfree(atslave);
return NULL;
+ }
atchan = to_at_dma_chan(chan);
atchan->per_if = dma_spec->args[0] & 0xff;
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
[-- Attachment #2: Digital signature --]
[-- Type: application/pgp-signature, Size: 181 bytes --]
next reply other threads:[~2020-09-20 8:28 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-20 8:28 Pavel Machek [this message]
2020-09-23 6:39 ` [PATCH 4.19] dmaengine: at_hdmac: Fix memory leak Ludovic Desroches
2020-09-23 8:13 ` Tudor.Ambarus
2020-09-23 8:19 ` Tudor.Ambarus
2021-01-04 11:02 ` Greg KH
2021-01-05 8:03 ` Tudor.Ambarus
2021-01-06 16:53 ` Greg KH
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=20200920082838.GA813@amd \
--to=pavel@ucw.cz \
--cc=dan.j.williams@intel.com \
--cc=dmaengine@vger.kernel.org \
--cc=greg@kroah.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=ludovic.desroches@microchip.com \
--cc=stable@vger.kernel.org \
--cc=vkoul@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).