linux-wireless.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Dan Carpenter <dan.carpenter@oracle.com>
To: johannes.berg@intel.com
Cc: linux-wireless@vger.kernel.org
Subject: re: mac80211: support P2P Device abstraction
Date: Tue, 4 Sep 2012 19:13:19 +0300	[thread overview]
Message-ID: <20120904161319.GA11494@elgon.mountain> (raw)

Hello Johannes Berg,

This is a semi-automatic email about new static checker warnings.

The patch f142c6b906da: "mac80211: support P2P Device abstraction" 
from Jun 18, 2012, leads to the following Smatch complaint:

net/mac80211/iface.c:1168 ieee80211_setup_sdata()
	 error: we previously assumed 'sdata->dev' could be null (see line 1134)

net/mac80211/iface.c
  1133		/* only monitor/p2p-device differ */
  1134		if (sdata->dev) {
                    ^^^^^^^^^^
New test.

  1135			sdata->dev->netdev_ops = &ieee80211_dataif_ops;
  1136			sdata->dev->type = ARPHRD_ETHER;
  1137		}

[snip]

  1167		case NL80211_IFTYPE_MONITOR:
  1168			sdata->dev->type = ARPHRD_IEEE80211_RADIOTAP;
                        ^^^^^^^^^^^^
Old dereference.

  1169			sdata->dev->netdev_ops = &ieee80211_monitorif_ops;
  1170			sdata->u.mntr_flags = MONITOR_FLAG_CONTROL |

regards,
dan carpenter


             reply	other threads:[~2012-09-04 16:13 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-09-04 16:13 Dan Carpenter [this message]
2012-09-04 16:18 ` mac80211: support P2P Device abstraction Johannes Berg
2012-09-04 17:20   ` Dan Carpenter
2012-09-04 17:27     ` Johannes Berg

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=20120904161319.GA11494@elgon.mountain \
    --to=dan.carpenter@oracle.com \
    --cc=johannes.berg@intel.com \
    --cc=linux-wireless@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).