[PATCH] acpi, nfit: Fix ARS overflow continuation

From: Dan Williams
Date: Tue Nov 06 2018 - 11:17:34 EST


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@xxxxxxxxxxxxxxx>
Fixes: 1cf03c00e7c1 ("nfit: scrub and register regions in a workqueue")
Reported-by: Jacek Zloch <jacek.zloch@xxxxxxxxx>
Signed-off-by: Dan Williams <dan.j.williams@xxxxxxxxx>
---
drivers/acpi/nfit/core.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c
index f8c638f3c946..5970b8f5f768 100644
--- a/drivers/acpi/nfit/core.c
+++ b/drivers/acpi/nfit/core.c
@@ -2928,9 +2928,9 @@ static int acpi_nfit_query_poison(struct acpi_nfit_desc *acpi_desc)
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,