[PATCH 4.4 34/38] ACPI / APEI: Fix incorrect return value of ghes_proc()

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4.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Punit Agrawal <punit.agrawal@xxxxxxx>

commit 806487a8fc8f385af75ed261e9ab658fc845e633 upstream.

Although ghes_proc() tests for errors while reading the error status,
it always return success (0). Fix this by propagating the return
value.

Fixes: d334a49113a4a33 (ACPI, APEI, Generic Hardware Error Source memory error support)
Signed-of-by: Punit Agrawal <punit.agrawa.@xxxxxxx>
Tested-by: Tyler Baicar <tbaicar@xxxxxxxxxxxxxx>
Reviewed-by: Borislav Petkov <bp@xxxxxxx>
[ rjw: Subject ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 drivers/acpi/apei/ghes.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/acpi/apei/ghes.c
+++ b/drivers/acpi/apei/ghes.c
@@ -657,7 +657,7 @@ static int ghes_proc(struct ghes *ghes)
 	ghes_do_proc(ghes, ghes->estatus);
 out:
 	ghes_clear_estatus(ghes);
-	return 0;
+	return rc;
 }
 
 static void ghes_add_timer(struct ghes *ghes)


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