Patch "drm/amd/powerplay: fix memory leak in cz_hwmgr backend" has been added to the 4.12-stable tree

Patch "drm/amd/powerplay: fix memory leak in cz_hwmgr backend" has been added to the 4.12-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    drm/amd/powerplay: fix memory leak in cz_hwmgr backend

to the 4.12-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     drm-amd-powerplay-fix-memory-leak-in-cz_hwmgr-backend.patch
and it can be found in the queue-4.12 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From b1e8b9c5b19c58e3159c2acc77167f4a4c74621f Mon Sep 17 00:00:00 2001
From: Hawking Zhang <Hawking.Zhang@amd.com>
Date: Tue, 6 Jun 2017 16:25:44 +0800
Subject: drm/amd/powerplay: fix memory leak in cz_hwmgr backend

From: Hawking Zhang <Hawking.Zhang@amd.com>

commit b1e8b9c5b19c58e3159c2acc77167f4a4c74621f upstream.

vddc_dep_on_dal_pwrl is allocated and initialized in cz_hwmgr_backend_init
Thus free the memory in cz_hwmgr_backend_fini

Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/gpu/drm/amd/powerplay/hwmgr/cz_hwmgr.c |    6 ++++++
 1 file changed, 6 insertions(+)

--- a/drivers/gpu/drm/amd/powerplay/hwmgr/cz_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/cz_hwmgr.c
@@ -1224,6 +1224,12 @@ static int cz_hwmgr_backend_fini(struct
 		phm_destroy_table(hwmgr, &(hwmgr->disable_dynamic_state_management));
 		phm_destroy_table(hwmgr, &(hwmgr->power_down_asic));
 		phm_destroy_table(hwmgr, &(hwmgr->setup_asic));
+
+		if (NULL != hwmgr->dyn_state.vddc_dep_on_dal_pwrl) {
+			kfree(hwmgr->dyn_state.vddc_dep_on_dal_pwrl);
+			hwmgr->dyn_state.vddc_dep_on_dal_pwrl = NULL;
+		}
+
 		kfree(hwmgr->backend);
 		hwmgr->backend = NULL;
 	}


Patches currently in stable-queue which might be from Hawking.Zhang@amd.com are

queue-4.12/drm-amd-powerplay-fix-memory-leak-in-cz_hwmgr-backend.patch