svn commit: r343682 - head/sys/dev/wtap

[Andriy Voskoboinyk]

Author: avos
Date: Sat Feb  2 16:15:46 2019
New Revision: 343682
URL: https://svnweb.freebsd.org/changeset/base/343682

Log:
  sys/dev/wtap: Check return value from malloc(..., M_NOWAIT) and
  drop unneeded cast.
  
  MFC after:	3 days

Modified:
  head/sys/dev/wtap/if_wtap.c

Modified: head/sys/dev/wtap/if_wtap.c
==============================================================================
--- head/sys/dev/wtap/if_wtap.c	Sat Feb  2 16:07:56 2019	(r343681)
+++ head/sys/dev/wtap/if_wtap.c	Sat Feb  2 16:15:46 2019	(r343682)
@@ -373,7 +373,7 @@ wtap_vap_delete(struct ieee80211vap *vap)
 	destroy_dev(avp->av_dev);
 	callout_stop(&avp->av_swba);
 	ieee80211_vap_detach(vap);
-	free((struct wtap_vap*) vap, M_80211_VAP);
+	free(avp, M_80211_VAP);
 }
 
 static void
@@ -602,6 +602,8 @@ wtap_node_alloc(struct ieee80211vap *vap, const uint8_
 
 	ni = malloc(sizeof(struct ieee80211_node), M_80211_NODE,
 	    M_NOWAIT|M_ZERO);
+	if (ni == NULL)
+		return (NULL);
 
 	ni->ni_txrate = 130;
 	return ni;