This is a note to let you know that I've just added the patch titled
drm/amdgpu/pm: Check the return value of smum_send_msg_to_smc
to the 6.10-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-amdgpu-pm-check-the-return-value-of-smum_send_ms.patch
and it can be found in the queue-6.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit c1fe1f55a84112f3840904a2272b3b5c6f93c49a
Author: Ma Jun <Jun.Ma2@xxxxxxx>
Date: Fri Apr 26 14:38:04 2024 +0800
drm/amdgpu/pm: Check the return value of smum_send_msg_to_smc
[ Upstream commit 579f0c21baec9e7506b6bb3f60f0a9b6d07693b4 ]
Check the return value of smum_send_msg_to_smc, otherwise
we might use an uninitialized variable "now"
Signed-off-by: Ma Jun <Jun.Ma2@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/smu10_hwmgr.c b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu10_hwmgr.c
index 02ba68d7c654..0b181bc8931c 100644
--- a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu10_hwmgr.c
+++ b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu10_hwmgr.c
@@ -1036,7 +1036,9 @@ static int smu10_print_clock_levels(struct pp_hwmgr *hwmgr,
switch (type) {
case PP_SCLK:
- smum_send_msg_to_smc(hwmgr, PPSMC_MSG_GetGfxclkFrequency, &now);
+ ret = smum_send_msg_to_smc(hwmgr, PPSMC_MSG_GetGfxclkFrequency, &now);
+ if (ret)
+ return ret;
/* driver only know min/max gfx_clk, Add level 1 for all other gfx clks */
if (now == data->gfx_max_freq_limit/100)
@@ -1057,7 +1059,9 @@ static int smu10_print_clock_levels(struct pp_hwmgr *hwmgr,
i == 2 ? "*" : "");
break;
case PP_MCLK:
- smum_send_msg_to_smc(hwmgr, PPSMC_MSG_GetFclkFrequency, &now);
+ ret = smum_send_msg_to_smc(hwmgr, PPSMC_MSG_GetFclkFrequency, &now);
+ if (ret)
+ return ret;
for (i = 0; i < mclk_table->count; i++)
size += sprintf(buf + size, "%d: %uMhz %s\n",
