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path: root/drivers/acpi/events
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-rw-r--r--drivers/acpi/events/evrgnini.c13
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/acpi/events/evrgnini.c b/drivers/acpi/events/evrgnini.c
index db98747fe54..d1809f4240a 100644
--- a/drivers/acpi/events/evrgnini.c
+++ b/drivers/acpi/events/evrgnini.c
@@ -75,7 +75,18 @@ acpi_ev_system_memory_region_setup(acpi_handle handle,
if (function == ACPI_REGION_DEACTIVATE) {
if (*region_context) {
- ACPI_FREE(*region_context);
+ local_region_context =
+ (struct acpi_mem_space_context *)*region_context;
+
+ /* Delete a cached mapping if present */
+
+ if (local_region_context->mapped_length) {
+ acpi_os_unmap_memory(local_region_context->
+ mapped_logical_address,
+ local_region_context->
+ mapped_length);
+ }
+ ACPI_FREE(local_region_context);
*region_context = NULL;
}
return_ACPI_STATUS(AE_OK);