This is a note to let you know that I've just added the patch titled
drm/amd/pm: fix warning using uninitialized value of max_vid_step
to the 5.10-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-pm-fix-warning-using-uninitialized-value-of-.patch
and it can be found in the queue-5.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 3af525674cc4863faaee20143cab0ac593b91c28
Author: Jesse Zhang <jesse.zhang@xxxxxxx>
Date: Mon Apr 29 15:26:25 2024 +0800
drm/amd/pm: fix warning using uninitialized value of max_vid_step
[ Upstream commit 17e3bea65cdc453695b2fe4ff26d25d17f5339e9 ]
Check the return of pp_atomfwctrl_get_Voltage_table_v4
as it may fail to initialize max_vid_step
V2: change the check condition (Tim Huang)
Signed-off-by: Jesse Zhang <Jesse.Zhang@xxxxxxx>
Reviewed-by: Tim Huang <Tim.Huang@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega10_hwmgr.c b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega10_hwmgr.c
index 10678b519995..e4a8f1aabd78 100644
--- a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega10_hwmgr.c
+++ b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega10_hwmgr.c
@@ -2572,8 +2572,11 @@ static int vega10_init_smc_table(struct pp_hwmgr *hwmgr)
}
}
- pp_atomfwctrl_get_voltage_table_v4(hwmgr, VOLTAGE_TYPE_VDDC,
+ result = pp_atomfwctrl_get_voltage_table_v4(hwmgr, VOLTAGE_TYPE_VDDC,
VOLTAGE_OBJ_SVID2, &voltage_table);
+ PP_ASSERT_WITH_CODE(!result,
+ "Failed to get voltage table!",
+ return result);
pp_table->MaxVidStep = voltage_table.max_vid_step;
pp_table->GfxDpmVoltageMode =
