Search Linux Wireless

[PATCH] cfg80211: annotate cfg80211_inform_bss

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



From: Johannes Berg <johannes.berg@xxxxxxxxx>

This function returns a referenced BSS struct
(or NULL), annotate with __must_check. It seems
that a lot of drivers get this completely wrong
and leak all BSS structs as a result.

Reported-by: Adam Mikuta <Adam.Mikuta@xxxxxxxxx>
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
---
CC lots of driver maintainers who need to fix this bug.

 include/net/cfg80211.h |    8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

--- a/include/net/cfg80211.h	2011-10-27 14:05:17.000000000 +0200
+++ b/include/net/cfg80211.h	2011-10-27 14:42:51.000000000 +0200
@@ -2651,8 +2651,10 @@ void cfg80211_sched_scan_stopped(struct
  *
  * This informs cfg80211 that BSS information was found and
  * the BSS should be updated/added.
+ *
+ * NOTE: Returns a referenced struct, must be released with cfg80211_put_bss()!
  */
-struct cfg80211_bss*
+struct cfg80211_bss * __must_check
 cfg80211_inform_bss_frame(struct wiphy *wiphy,
 			  struct ieee80211_channel *channel,
 			  struct ieee80211_mgmt *mgmt, size_t len,
@@ -2674,8 +2676,10 @@ cfg80211_inform_bss_frame(struct wiphy *
  *
  * This informs cfg80211 that BSS information was found and
  * the BSS should be updated/added.
+ *
+ * NOTE: Returns a referenced struct, must be released with cfg80211_put_bss()!
  */
-struct cfg80211_bss*
+struct cfg80211_bss * __must_check
 cfg80211_inform_bss(struct wiphy *wiphy,
 		    struct ieee80211_channel *channel,
 		    const u8 *bssid,


--
To unsubscribe from this list: send the line "unsubscribe linux-wireless" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [Linux Host AP]     [ATH6KL]     [Linux Bluetooth]     [Linux Netdev]     [Kernel Newbies]     [Linux Kernel]     [IDE]     [Security]     [Git]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Linux ATA RAID]     [Samba]     [Device Mapper]
  Powered by Linux