[dm-devel] [PATCH 1/2] multipath-tools: fix the bug while processing vpd 0x83 designation descriptors

[Moger, Babu]

This patch fixes the bug while processing the vpd 0x83 designation descriptors.
Removing the buggy check(> sizeof(buf))while loping the descriptors. Sizeof(buf) will 
always return 8 (in 64 bit machine). Descriptor length can be more than 8 bytes in 
some cases. This was causing problems while configuring my storage with alua.

Signed-off-by: Babu Moger <babu.moger at netapp.com>
---
--- multipath-tools/libmultipath/prioritizers/alua_rtpg.c.orig	2012-02-21 16:14:55.000000000 -0600
+++ multipath-tools/libmultipath/prioritizers/alua_rtpg.c	2012-02-21 16:16:41.000000000 -0600
@@ -184,9 +184,6 @@ get_target_port_group(int fd)
 
 		rc = -RTPG_NO_TPG_IDENTIFIER;
 		FOR_EACH_VPD83_DSCR(vpd83, dscr) {
-			if ((((char *) dscr) - ((char *) vpd83)) > sizeof(buf))
-				break;
-
 			if (vpd83_dscr_istype(dscr, IDTYPE_TARGET_PORT_GROUP)) {
 				struct vpd83_tpg_dscr *	p;