From: Dan Williams <dan.j.williams@intel.com>
Date: Thu, 1 Nov 2018 00:30:22 -0700
Subject: acpi, nfit: Fix ARS overflow continuation
Git-commit: 3fa58dcab50a0aa16817f16a8d38aee869eb3fb9
Patch-mainline: v4.20-rc3
References: bsc#1116895

When the platform BIOS is unable to report all the media error records
it requires the OS to restart the scrub at a prescribed location. The
driver detects the overflow condition, but then fails to report it to
the ARS state machine after reaping the records. Propagate -ENOSPC
correctly to continue the ARS operation.

Cc: <stable@vger.kernel.org>
Fixes: 1cf03c00e7c1 ("nfit: scrub and register regions in a workqueue")
Reported-by: Jacek Zloch <jacek.zloch@intel.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Johannes Thumshirn <jthumshirn@suse.de>
---
 drivers/acpi/nfit/core.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/acpi/nfit/core.c
+++ b/drivers/acpi/nfit/core.c
@@ -2929,9 +2929,9 @@ static int acpi_nfit_query_poison(struct
 		return rc;
 
 	if (ars_status_process_records(acpi_desc))
-		return -ENOMEM;
+		dev_err(acpi_desc->dev, "Failed to process ARS records\n");
 
-	return 0;
+	return rc;
 }
 
 static int ars_register(struct acpi_nfit_desc *acpi_desc,