From: Yazen Ghannam Date: Fri, 27 Jan 2017 17:24:22 +0000 (-0600) Subject: EDAC, amd64: Don't treat ECC disabled as failure X-Git-Tag: v4.14-rc1~1518^2~6 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=4688c9b42dd2040673a1c2208a1008822b07ee4a;p=platform%2Fkernel%2Flinux-rpi.git EDAC, amd64: Don't treat ECC disabled as failure Having ECC disabled on a node doesn't necessarily mean that it's disabled for the entire system. So let's return a non-failing code when ECC is disabled on a node. This way we can skip initialization for the node but still continue with the remaining nodes. After probing all instances, make sure we have at least one MC device allocated. This issue is seen and fix tested on Fam15h and Fam17h MCM systems. Signed-off-by: Yazen Ghannam Cc: linux-edac Link: http://lkml.kernel.org/r/1485537863-2707-8-git-send-email-Yazen.Ghannam@amd.com Signed-off-by: Borislav Petkov --- diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c index 27246aa..565dc52 100644 --- a/drivers/edac/amd64_edac.c +++ b/drivers/edac/amd64_edac.c @@ -3336,7 +3336,7 @@ static int probe_one_instance(unsigned int nid) ecc_stngs[nid] = s; if (!ecc_enabled(F3, nid)) { - ret = -ENODEV; + ret = 0; if (!ecc_enable_override) goto err_enable; @@ -3465,6 +3465,11 @@ static int __init amd64_edac_init(void) } } + if (!edac_has_mcs()) { + err = -ENODEV; + goto err_pci; + } + /* register stuff with EDAC MCE */ if (report_gart_errors) amd_report_gart_errors(true);