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From: Garrett Cooper <ngie@FreeBSD.org>
Date: Mon, 11 Jul 2016 06:58:24 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
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Subject: svn commit: r302550 - head/sys/rpc
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Author: ngie
Date: Mon Jul 11 06:58:24 2016
New Revision: 302550
URL: https://svnweb.freebsd.org/changeset/base/302550

Log:
  Deobfuscate cleanup path in clnt_dg_create(..)
  
  Similar to r300836 and r301800, cl and cu will always be non-NULL as they're
  allocated using the mem_alloc routines, which always use
  `malloc(..., M_WAITOK)`.
  
  Deobfuscating the cleanup path fixes a leak where if cl was NULL and
  cu was not, cu would not be free'd, and also removes a duplicate test for
  cl not being NULL.
  
  MFC after: 1 week
  Reported by: Coverity
  CID: 1007033, 1007344
  Sponsored by: EMC / Isilon Storage Division

Modified:
  head/sys/rpc/clnt_dg.c

Modified: head/sys/rpc/clnt_dg.c
==============================================================================
--- head/sys/rpc/clnt_dg.c	Mon Jul 11 06:55:02 2016	(r302549)
+++ head/sys/rpc/clnt_dg.c	Mon Jul 11 06:58:24 2016	(r302550)
@@ -313,11 +313,9 @@ recheck_socket:
 	cl->cl_netid = NULL;
 	return (cl);
 err2:
-	if (cl) {
-		mem_free(cl, sizeof (CLIENT));
-		if (cu)
-			mem_free(cu, sizeof (*cu));
-	}
+	mem_free(cl, sizeof (CLIENT));
+	mem_free(cu, sizeof (*cu));
+
 	return (NULL);
 }