svn commit: r298329 - head/sys/net

[Conrad E. Meyer]

Author: cem
Date: Wed Apr 20 02:01:45 2016
New Revision: 298329
URL: https://svnweb.freebsd.org/changeset/base/298329

Log:
  radix rn_inithead: Fix minor leak in low memory conditions
  
  R_Zalloc is essentially a malloc(M_NOWAIT) wrapper.  It is possible that 'rnh'
  failed to allocate, but 'rmh' succeeds.  In that case, we bail out of
  rn_inithead() but previously did not free 'rmh'.
  
  Introduced in r287073 (projects/routing) / MFP r294706.
  
  Reported by:	Coverity
  CID:		1350258
  Sponsored by:	EMC / Isilon Storage Division

Modified:
  head/sys/net/radix.c

Modified: head/sys/net/radix.c
==============================================================================
--- head/sys/net/radix.c	Wed Apr 20 01:39:31 2016	(r298328)
+++ head/sys/net/radix.c	Wed Apr 20 02:01:45 2016	(r298329)
@@ -1156,6 +1156,8 @@ rn_inithead(void **head, int off)
 	if (rnh == NULL || rmh == NULL) {
 		if (rnh != NULL)
 			R_Free(rnh);
+		if (rmh != NULL)
+			R_Free(rmh);
 		return (0);
 	}