diff mbox

mac80211: fix NULL pointer dereference when ftrace is enabled

Message ID 1264492737-16877-1-git-send-email-yi.zhu@intel.com (mailing list archive)
State Not Applicable, archived
Headers show

Commit Message

Zhu Yi Jan. 26, 2010, 7:58 a.m. UTC 
None
diff mbox

Patch

diff --git a/net/mac80211/driver-trace.h b/net/mac80211/driver-trace.h
index fefa6e6..502424b 100644
--- a/net/mac80211/driver-trace.h
+++ b/net/mac80211/driver-trace.h
@@ -708,7 +708,7 @@  TRACE_EVENT(drv_ampdu_action,
 		__entry->ret = ret;
 		__entry->action = action;
 		__entry->tid = tid;
-		__entry->ssn = *ssn;
+		__entry->ssn = ssn ? *ssn : 0;
 	),
 
 	TP_printk(