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authorLinus Torvalds <torvalds@linux-foundation.org>2017-09-28 14:38:30 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2017-09-28 14:38:30 -0700
commit770b782f555d663d133fcd4dc1632023f79357b9 (patch)
treed212d4857fbeb946c82eb53bcf818f3248a14e3d
parent74de8187ff46bfc24fcb1533791515e46b256116 (diff)
parent333d1774224de9d1d9cedf11218e297d5421044b (diff)
Merge tag 'acpi-4.14-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fix from Rafael Wysocki: "This fixes an APEI problem that may cause a reported error to be missed due to a race condition" * tag 'acpi-4.14-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI / APEI: clear error status before acknowledging the error
-rw-r--r--drivers/acpi/apei/ghes.c16
1 files changed, 9 insertions, 7 deletions
diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c
index 077f9bad6f44..3c3a37b8503b 100644
--- a/drivers/acpi/apei/ghes.c
+++ b/drivers/acpi/apei/ghes.c
@@ -743,17 +743,19 @@ static int ghes_proc(struct ghes *ghes)
}
ghes_do_proc(ghes, ghes->estatus);
+out:
+ ghes_clear_estatus(ghes);
+
+ if (rc == -ENOENT)
+ return rc;
+
/*
* GHESv2 type HEST entries introduce support for error acknowledgment,
* so only acknowledge the error if this support is present.
*/
- if (is_hest_type_generic_v2(ghes)) {
- rc = ghes_ack_error(ghes->generic_v2);
- if (rc)
- return rc;
- }
-out:
- ghes_clear_estatus(ghes);
+ if (is_hest_type_generic_v2(ghes))
+ return ghes_ack_error(ghes->generic_v2);
+
return rc;
}