The returned size is still used by the drivers.
Reported-by: Dan Williams <dan.j.williams@xxxxxxxxx>
Cc: Dan Williams <dan.j.williams@xxxxxxxxx>
Signed-off-by: Lv Zheng <lv.zheng@xxxxxxxxx>
---
drivers/acpi/osl.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index 5bef0f65..adf1ec4 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -445,8 +445,12 @@ void __ref acpi_os_unmap_memory(void *virt, acpi_size size)
status = acpi_get_table(signature, instance, out_table);
if (ACPI_SUCCESS(status)) {
- /* No longer used by early_acpi_os_unmap_memory() */
- *tbl_size = 0;
+ /*
+ * No longer used by early_acpi_os_unmap_memory(), but still
+ * used by the ACPI table drivers.
+ */
+ if (*out_table)
+ *tbl_size = (*out_table)->length;
}
return (status);
--
1.7.10
--
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