From: Chuhong Yuan <hslester96@gmail.com>
To: unlisted-recipients:; (no To-header on input)
Cc: Hans Verkuil <hverkuil-cisco@xs4all.nl>,
Mauro Carvalho Chehab <mchehab@kernel.org>,
Markus Elfring <Markus.Elfring@web.de>,
Dan Carpenter <dan.carpenter@oracle.com>,
linux-media@vger.kernel.org, linux-kernel@vger.kernel.org,
Chuhong Yuan <hslester96@gmail.com>
Subject: [PATCH v2] media: go7007: fix a miss of snd_card_free
Date: Tue, 10 Dec 2019 11:15:48 +0800 [thread overview]
Message-ID: <20191210031548.18659-1-hslester96@gmail.com> (raw)
go7007_snd_init() misses a snd_card_free() in an error path.
Add the missed call to fix it.
Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
---
Changes in v2:
- Use goto to simplify the code.
drivers/media/usb/go7007/snd-go7007.c | 35 +++++++++++++--------------
1 file changed, 17 insertions(+), 18 deletions(-)
diff --git a/drivers/media/usb/go7007/snd-go7007.c b/drivers/media/usb/go7007/snd-go7007.c
index b05fa227ffb2..95756cbb722f 100644
--- a/drivers/media/usb/go7007/snd-go7007.c
+++ b/drivers/media/usb/go7007/snd-go7007.c
@@ -236,22 +236,18 @@ int go7007_snd_init(struct go7007 *go)
gosnd->capturing = 0;
ret = snd_card_new(go->dev, index[dev], id[dev], THIS_MODULE, 0,
&gosnd->card);
- if (ret < 0) {
- kfree(gosnd);
- return ret;
- }
+ if (ret < 0)
+ goto free_snd;
+
ret = snd_device_new(gosnd->card, SNDRV_DEV_LOWLEVEL, go,
&go7007_snd_device_ops);
- if (ret < 0) {
- kfree(gosnd);
- return ret;
- }
+ if (ret < 0)
+ goto free_card;
+
ret = snd_pcm_new(gosnd->card, "go7007", 0, 0, 1, &gosnd->pcm);
- if (ret < 0) {
- snd_card_free(gosnd->card);
- kfree(gosnd);
- return ret;
- }
+ if (ret < 0)
+ goto free_card;
+
strscpy(gosnd->card->driver, "go7007", sizeof(gosnd->card->driver));
strscpy(gosnd->card->shortname, go->name, sizeof(gosnd->card->shortname));
strscpy(gosnd->card->longname, gosnd->card->shortname,
@@ -262,11 +258,8 @@ int go7007_snd_init(struct go7007 *go)
&go7007_snd_capture_ops);
ret = snd_card_register(gosnd->card);
- if (ret < 0) {
- snd_card_free(gosnd->card);
- kfree(gosnd);
- return ret;
- }
+ if (ret < 0)
+ goto free_card;
gosnd->substream = NULL;
go->snd_context = gosnd;
@@ -274,6 +267,12 @@ int go7007_snd_init(struct go7007 *go)
++dev;
return 0;
+
+free_card:
+ snd_card_free(gosnd->card);
+free_snd:
+ kfree(gosnd);
+ return ret;
}
EXPORT_SYMBOL(go7007_snd_init);
--
2.24.0
next reply other threads:[~2019-12-10 3:15 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-10 3:15 Chuhong Yuan [this message]
2019-12-10 11:48 ` Markus Elfring
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=20191210031548.18659-1-hslester96@gmail.com \
--to=hslester96@gmail.com \
--cc=Markus.Elfring@web.de \
--cc=dan.carpenter@oracle.com \
--cc=hverkuil-cisco@xs4all.nl \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-media@vger.kernel.org \
--cc=mchehab@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
all inboxes | Powered by JetHome®