Patch "drm/amd/powerplay: fix uninitialized variable" has been added to the 4.9-stable tree

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

drm/amd/powerplay: fix uninitialized variable

to the 4.9-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-uninitialized-variable.patch
and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Rex Zhu <[email protected]>
Date: Fri, 20 Oct 2017 15:07:41 +0800
Subject: drm/amd/powerplay: fix uninitialized variable

From: Rex Zhu <[email protected]>

commit 8b95f4f730cba02ef6febbdc4ca7e55ca045b00e upstream.

refresh_rate was not initialized when program
display gap.
this patch can fix vce ring test failed
when do S3 on Polaris10.

---
 drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

@@ -825,7 +825,7 @@ uint32_t smu7_get_xclk(struct pp_hwmgr *
 {
 	uint32_t reference_clock, tmp;
 	struct cgs_display_info info = {0};
-	struct cgs_mode_info mode_info;
+	struct cgs_mode_info mode_info = {0};
 
 	info.mode_info = &mode_info;
 

@@ -3718,10 +3718,9 @@ int smu7_program_display_gap(struct pp_h
 	uint32_t ref_clock;
 	uint32_t refresh_rate = 0;
 	struct cgs_display_info info = {0};
-	struct cgs_mode_info mode_info;
+	struct cgs_mode_info mode_info = {0};
 
 	info.mode_info = &mode_info;
-
 	cgs_get_active_displays_info(hwmgr->device, &info);
 	num_active_displays = info.display_count;
 

@@ -3737,6 +3736,7 @@ int smu7_program_display_gap(struct pp_h
 	frame_time_in_us = 1000000 / refresh_rate;
 
 	pre_vbi_time_in_us = frame_time_in_us - 200 - mode_info.vblank_time_us;
+
 	data->frame_time_x2 = frame_time_in_us * 2 / 100;
 
 	display_gap2 = pre_vbi_time_in_us * (ref_clock / 100);

Patches currently in stable-queue which might be from [email protected] are

queue-4.9/drm-amd-powerplay-fix-uninitialized-variable.patch