linux-media.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Dan Carpenter <dan.carpenter@oracle.com>
To: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: linux-media@vger.kernel.org, kernel-janitors@vger.kernel.org
Subject: [patch] [media] mantis_dvb: fix some error codes in mantis_dvb_init()
Date: Fri, 27 Jan 2017 11:06:22 +0300	[thread overview]
Message-ID: <20170127080622.GA4153@mwanda> (raw)

We should be returning negative error codes here or it leads to a crash.
This also silences a static checker warning.

	drivers/media/pci/mantis/mantis_cards.c:250 mantis_pci_probe()
	warn: 'mantis->dmxdev.dvbdev->fops' double freed

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

diff --git a/drivers/media/pci/mantis/mantis_dvb.c b/drivers/media/pci/mantis/mantis_dvb.c
index 5a71e1791cf5..0db4de3a2285 100644
--- a/drivers/media/pci/mantis/mantis_dvb.c
+++ b/drivers/media/pci/mantis/mantis_dvb.c
@@ -226,11 +226,12 @@ int mantis_dvb_init(struct mantis_pci *mantis)
 			goto err5;
 		} else {
 			if (mantis->fe == NULL) {
+				result = -ENOMEM;
 				dprintk(MANTIS_ERROR, 1, "FE <NULL>");
 				goto err5;
 			}
-
-			if (dvb_register_frontend(&mantis->dvb_adapter, mantis->fe)) {
+			result = dvb_register_frontend(&mantis->dvb_adapter, mantis->fe);
+			if (result) {
 				dprintk(MANTIS_ERROR, 1, "ERROR: Frontend registration failed");
 
 				if (mantis->fe->ops.release)

             reply	other threads:[~2017-01-27  8:07 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-01-27  8:06 Dan Carpenter [this message]
2017-01-27  8:15 ` [patch] [media] add device IDs to ngene vdr
2017-01-27 13:20   ` [PATCH] [MEDIA] " vdr
2017-02-07  8:42     ` [PATCH] [MEDIA] add device ID to ati remote vdr
2017-02-13 13:42       ` Sean Young
2017-02-13 22:57         ` Helmut Auer
2017-02-14  7:11         ` Helmut Auer
2017-02-14  7:20     ` [PATCH] [MEDIA] add device IDs to ngene driver Helmut Auer
2017-01-27  8:29 ` [patch] [media] mantis_dvb: fix some error codes in mantis_dvb_init() walter harms
2017-01-27  9:46   ` Dan Carpenter

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=20170127080622.GA4153@mwanda \
    --to=dan.carpenter@oracle.com \
    --cc=kernel-janitors@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;
as well as URLs for NNTP newsgroup(s).