From: Bob Moore <robert.moore@intel.com>
Date: Wed, 14 Mar 2018 23:13:01 +0000 (-0700)
Subject: ACPICA: Fix memory leak on unusual memory leak
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=1c29c372b2d1d2415601041532745ce859f24126;p=linux.git

ACPICA: Fix memory leak on unusual memory leak

Fixes a single-object memory leak on a store-to-reference method
invocation. ACPICA BZ 1439.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---

diff --git a/drivers/acpi/acpica/psargs.c b/drivers/acpi/acpica/psargs.c
index dbc51bc5fdd67..5ca895da3b10d 100644
--- a/drivers/acpi/acpica/psargs.c
+++ b/drivers/acpi/acpica/psargs.c
@@ -890,6 +890,10 @@ acpi_ps_get_next_arg(struct acpi_walk_state *walk_state,
 						      ACPI_POSSIBLE_METHOD_CALL);
 
 			if (arg->common.aml_opcode == AML_INT_METHODCALL_OP) {
+
+				/* Free method call op and corresponding namestring sub-ob */
+
+				acpi_ps_free_op(arg->common.value.arg);
 				acpi_ps_free_op(arg);
 				arg = NULL;
 				walk_state->arg_count = 1;