linux-kernel - [PATCH 4.18 01/22] EDAC: Add missing MEM_LRDDR4 entry in edac_mem

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Message-Id: <20180823074759.303513950@linuxfoundation.org>
Date:   Thu, 23 Aug 2018 09:56:27 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Takashi Iwai <tiwai@...e.de>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Yazen Ghannam <Yazen.Ghannam@....com>,
        linux-edac <linux-edac@...r.kernel.org>,
        Borislav Petkov <bp@...e.de>
Subject: [PATCH 4.18 01/22] EDAC: Add missing MEM_LRDDR4 entry in edac_mem_types[]

4.18-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Takashi Iwai <tiwai@...e.de>

commit b748f2de4b2f578599f46c6000683a8da755bf68 upstream.

The edac_mem_types[] array misses a MEM_LRDDR4 entry, which leads to
NULL pointer dereference when accessed via sysfs or such.

Signed-off-by: Takashi Iwai <tiwai@...e.de>
Cc: Mauro Carvalho Chehab <mchehab@...nel.org>
Cc: Yazen Ghannam <Yazen.Ghannam@....com>
Cc: linux-edac <linux-edac@...r.kernel.org>
Cc: <stable@...r.kernel.org>
Link: http://lkml.kernel.org/r/20180810141426.8918-1-tiwai@suse.de
Fixes: 1e8096bb2031 ("EDAC: Add LRDDR4 DRAM type")
Signed-off-by: Borislav Petkov <bp@...e.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/edac/edac_mc.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/edac/edac_mc.c
+++ b/drivers/edac/edac_mc.c
@@ -215,6 +215,7 @@ const char * const edac_mem_types[] = {
 	[MEM_LRDDR3]	= "Load-Reduced-DDR3-RAM",
 	[MEM_DDR4]	= "Unbuffered-DDR4",
 	[MEM_RDDR4]	= "Registered-DDR4",
+	[MEM_LRDDR4]	= "Load-Reduced-DDR4-RAM",
 	[MEM_NVDIMM]	= "Non-volatile-RAM",
 };
 EXPORT_SYMBOL_GPL(edac_mem_types);