From: Tyler Baicar <tbaicar@codeaurora.org>
Date: Wed, 21 Jun 2017 18:17:15 +0000 (-0600)
Subject: acpi: apei: check for pending errors when probing GHES entries
X-Git-Tag: Ubuntu-4.10.0-33.37~86
X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=cbf845795049aec5649cb595048ced1f3e3cb971;p=mirror_ubuntu-zesty-kernel.git

acpi: apei: check for pending errors when probing GHES entries

Check for pending errors when probing GHES entries. It is possible
that a fatal error is already pending at this point, so we should
handle it as soon as the driver is probed. This also avoids a
potential issue if there was an interrupt that was already
cleared for an error since the GHES driver wasn't present.

BugLink: https://launchpad.net/bugs/1696570

Signed-off-by: Tyler Baicar <tbaicar@codeaurora.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
(cherry picked from commit 77b246b32b2c4bc21e352dcb8b53a8aba81ee5a4)
Signed-off-by: Manoj Iyer <manoj.iyer@canonical.com>
Acked-by: Stefan Bader <stefan.bader@canonical.com>
Acked-by: Seth Forshee <seth.forshee@canonical.com>
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@canonical.com>
---

diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c
index 70ea44968ace..f4257268da97 100644
--- a/drivers/acpi/apei/ghes.c
+++ b/drivers/acpi/apei/ghes.c
@@ -1182,6 +1182,9 @@ static int ghes_probe(struct platform_device *ghes_dev)
 	}
 	platform_set_drvdata(ghes_dev, ghes);
 
+	/* Handle any pending errors right away */
+	ghes_proc(ghes);
+
 	return 0;
 err_edac_unreg:
 	ghes_edac_unregister(ghes);