1 files changed, 12 insertions, 1 deletions

diff --git a/drivers/acpi/events/evrgnini.c b/drivers/acpi/events/evrgnini.c
index db98747fe54d..d1809f4240a4 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);