From: Mauro Carvalho Chehab <mchehab@redhat.com>
Date: Tue, 28 Sep 2010 14:34:10 -0400
Subject: [edac] i7300_edac: fix MTR x4/x8 detection logic
Message-id: <20100928113410.73253e98@pedra>
Patchwork-id: 28474
O-Subject: [PATCH RHEL5 15/27] i7300_edac: Fix MTR x4/x8 detection logic
Bugzilla: 487428
RH-Acked-by: Prarit Bhargava <prarit@redhat.com>

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Jarod Wilson <jarod@redhat.com>

diff --git a/drivers/edac/i7300_edac.c b/drivers/edac/i7300_edac.c
index 218d463..a4f47fd 100644
--- a/drivers/edac/i7300_edac.c
+++ b/drivers/edac/i7300_edac.c
@@ -583,14 +583,14 @@ static int decode_mtr(struct i7300_pvt *pvt,
 		debugf2("\t\tECC code is 8-byte-over-32-byte SECDED+ code\n");
 	} else {
 		debugf2("\t\tECC code is on Lockstep mode\n");
-		if (MTR_DRAM_WIDTH(mtr))
+		if (MTR_DRAM_WIDTH(mtr) == 8)
 			p_csrow->edac_mode = EDAC_S8ECD8ED;
 		else
 			p_csrow->edac_mode = EDAC_S4ECD4ED;
 	}
 
 	/* ask what device type on this row */
-	if (MTR_DRAM_WIDTH(mtr)) {
+	if (MTR_DRAM_WIDTH(mtr) == 8) {
 		debugf2("\t\tScrub algorithm for x8 is on %s mode\n",
 			IS_SCRBALGO_ENHANCED(pvt->mc_settings) ?
 					    "enhanced" : "normal");