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linux/net/wireless
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Julia Lawall efe1cf0c57 net/wireless/nl80211.c: Avoid call to genlmsg_cancel 
genlmsg_cancel subtracts some constants from its second argument before
calling nlmsg_cancel.  nlmsg_cancel then calls nlmsg_trim on the same
arguments.  nlmsg_trim tests for NULL before doing any computation, but a
NULL second argument to genlmsg_cancel is no longer NULL due to the initial
subtraction.  Nothing else happens in this execution, so the call to
genlmsg_cancel is simply unnecessary in this case.

The semantic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
expression data;
@@

if (data == NULL) { ...
* genlmsg_cancel(..., data);
  ...
  return ...;
}
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-01-28 15:46:23 -05:00
..
.gitignore wireless: support internal statically compiled regulatory database 2009-12-21 18:56:10 -05:00
chan.c cfg80211: fix can_beacon_sec_chan, reenable HT40 2010-11-18 11:35:05 -05:00
core.c mac80211: Let userspace enable and configure vendor specific path selection. 2010-12-20 14:46:57 -05:00
core.h mac80211: Let userspace enable and configure vendor specific path selection. 2010-12-20 14:46:57 -05:00
db.txt wireless: support internal statically compiled regulatory database 2009-12-21 18:56:10 -05:00
debugfs.c llseek: automatically add .llseek fop 2010-10-15 15:53:27 +02:00
debugfs.h cfg80211/mac80211: use debugfs_remove_recursive 2009-10-30 16:49:18 -04:00
ethtool.c cfg80211: add firmware and hardware version to wiphy 2009-10-07 16:39:46 -04:00
ethtool.h net/wireless/ethtool.h: drop unnecessary include of linux/ethtool.h 2009-10-07 16:39:49 -04:00
genregdb.awk wireless: correct sparse warning in generated regdb.c 2010-07-20 16:49:37 -04:00
ibss.c cfg80211/mac80211: allow per-station GTKs 2010-10-06 16:30:40 -04:00
Kconfig wireless: remove CONFIG_WIRELESS_OLD_REGULATORY 2009-12-28 16:31:37 -05:00
lib80211_crypt_ccmp.c lib80211: remove unused host_build_iv option 2010-07-26 15:09:04 -04:00
lib80211_crypt_tkip.c net/wireless: Use pr_<level> and netdev_<level> 2010-11-24 16:19:33 -05:00
lib80211_crypt_wep.c lib80211: remove unused host_build_iv option 2010-07-26 15:09:04 -04:00
lib80211.c net/wireless: Use pr_<level> and netdev_<level> 2010-11-24 16:19:33 -05:00
Makefile cfg80211/mac80211: add mesh join/leave commands 2010-12-06 16:01:29 -05:00
mesh.c mac80211: Let userspace enable and configure vendor specific path selection. 2010-12-20 14:46:57 -05:00
mlme.c nl80211: Add notification for dropped Deauth/Disassoc 2010-12-16 15:22:30 -05:00
nl80211.c net/wireless/nl80211.c: Avoid call to genlmsg_cancel 2011-01-28 15:46:23 -05:00
nl80211.h nl80211: Add notification for dropped Deauth/Disassoc 2010-12-16 15:22:30 -05:00
radiotap.c radiotap: fix vendor namespace parsing 2010-10-15 15:57:34 -04:00
reg.c cfg80211: Extend channel to frequency mapping for 802.11j 2011-01-21 15:34:17 -05:00
reg.h wireless: move regulatory_init to .init.text 2010-06-18 15:11:13 -04:00
regdb.h wireless: support internal statically compiled regulatory database 2009-12-21 18:56:10 -05:00
scan.c cfg80211: update information elements in cached BSS struct 2010-12-13 15:23:28 -05:00
sme.c cfg80211/mac80211: allow per-station GTKs 2010-10-06 16:30:40 -04:00
sysfs.c wireless: Print wiphy name in sysfs. 2010-10-12 16:05:29 -04:00
sysfs.h [WIRELESS] cfg80211: New wireless config infrastructure. 2007-04-25 22:29:41 -07:00
util.c cfg80211: Allow non-zero indexes for device specific pair-wise ciphers 2011-01-28 15:44:27 -05:00
wext-compat.c cfg80211: Extend channel to frequency mapping for 802.11j 2011-01-21 15:34:17 -05:00
wext-compat.h cfg80211: validate channel settings across interfaces 2009-08-14 09:13:42 -04:00
wext-core.c net/wireless: Use pr_<level> and netdev_<level> 2010-11-24 16:19:33 -05:00
wext-priv.c wext: fix potential private ioctl memory content leak 2010-09-20 13:41:40 -04:00
wext-proc.c net: spread __net_init, __net_exit 2010-01-17 19:16:02 -08:00
wext-sme.c cfg80211: allow changing port control protocol 2010-08-27 13:27:07 -04:00
wext-spy.c wext: refactor 2009-10-07 16:39:43 -04:00