Commit 7422c581 authored by Yazen Ghannam's avatar Yazen Ghannam Committed by Greg Kroah-Hartman

EDAC, amd64: Add x86cpuid sanity check during init


[ Upstream commit 1bd9900b ]

Match one of the devices in amd64_cpuids[] before loading the module.
This is an additional sanity check against users trying to load
amd64_edac_mod on unsupported systems.
Signed-off-by: default avatarYazen Ghannam <Yazen.Ghannam@amd.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Link: http://lkml.kernel.org/r/1485537863-2707-9-git-send-email-Yazen.Ghannam@amd.com
[ Get rid of err_ret label, make it a bit more readable this way. ]
Signed-off-by: default avatarBorislav Petkov <bp@suse.de>
Signed-off-by: default avatarSasha Levin <alexander.levin@verizon.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 2f945e74
......@@ -2984,8 +2984,11 @@ static int __init amd64_edac_init(void)
int err = -ENODEV;
int i;
if (!x86_match_cpu(amd64_cpuids))
return -ENODEV;
if (amd_cache_northbridges() < 0)
goto err_ret;
return -ENODEV;
opstate_init();
......@@ -3025,7 +3028,6 @@ err_free:
kfree(ecc_stngs);
ecc_stngs = NULL;
err_ret:
return err;
}
......
......@@ -16,6 +16,7 @@
#include <linux/slab.h>
#include <linux/mmzone.h>
#include <linux/edac.h>
#include <asm/cpu_device_id.h>
#include <asm/msr.h>
#include "edac_core.h"
#include "mce_amd.h"
......
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