Patch "drm/amd/pm: fix uninitialized variable warning for smu8_hwmgr" has been added to the 5.10-stable tree

[Sasha Levin <sashal@xxxxxxxxxx>]

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

    drm/amd/pm: fix uninitialized variable warning for smu8_hwmgr

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-uninitialized-variable-warning-for-sm.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 b5846ae84412aa187577e19ae18187b67eb280c4
Author: Tim Huang <Tim.Huang@xxxxxxx>
Date:   Fri Apr 26 12:52:45 2024 +0800

    drm/amd/pm: fix uninitialized variable warning for smu8_hwmgr
    
    [ Upstream commit 86df36b934640866eb249a4488abb148b985a0d9 ]
    
    Clear warnings that using uninitialized value level when fails
    to get the value from SMU.
    
    Signed-off-by: Tim Huang <Tim.Huang@xxxxxxx>
    Reviewed-by: Christian König <christian.koenig@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/smu8_hwmgr.c b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu8_hwmgr.c
index 35d0ff57a596..e85a90b989b5 100644
--- a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu8_hwmgr.c
+++ b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu8_hwmgr.c
@@ -584,6 +584,7 @@ static int smu8_init_uvd_limit(struct pp_hwmgr *hwmgr)
 				hwmgr->dyn_state.uvd_clock_voltage_dependency_table;
 	unsigned long clock = 0;
 	uint32_t level;
+	int ret;
 
 	if (NULL == table || table->count <= 0)
 		return -EINVAL;
@@ -591,7 +592,9 @@ static int smu8_init_uvd_limit(struct pp_hwmgr *hwmgr)
 	data->uvd_dpm.soft_min_clk = 0;
 	data->uvd_dpm.hard_min_clk = 0;
 
-	smum_send_msg_to_smc(hwmgr, PPSMC_MSG_GetMaxUvdLevel, &level);
+	ret = smum_send_msg_to_smc(hwmgr, PPSMC_MSG_GetMaxUvdLevel, &level);
+	if (ret)
+		return ret;
 
 	if (level < table->count)
 		clock = table->entries[level].vclk;
@@ -611,6 +614,7 @@ static int smu8_init_vce_limit(struct pp_hwmgr *hwmgr)
 				hwmgr->dyn_state.vce_clock_voltage_dependency_table;
 	unsigned long clock = 0;
 	uint32_t level;
+	int ret;
 
 	if (NULL == table || table->count <= 0)
 		return -EINVAL;
@@ -618,7 +622,9 @@ static int smu8_init_vce_limit(struct pp_hwmgr *hwmgr)
 	data->vce_dpm.soft_min_clk = 0;
 	data->vce_dpm.hard_min_clk = 0;
 
-	smum_send_msg_to_smc(hwmgr, PPSMC_MSG_GetMaxEclkLevel, &level);
+	ret = smum_send_msg_to_smc(hwmgr, PPSMC_MSG_GetMaxEclkLevel, &level);
+	if (ret)
+		return ret;
 
 	if (level < table->count)
 		clock = table->entries[level].ecclk;
@@ -638,6 +644,7 @@ static int smu8_init_acp_limit(struct pp_hwmgr *hwmgr)
 				hwmgr->dyn_state.acp_clock_voltage_dependency_table;
 	unsigned long clock = 0;
 	uint32_t level;
+	int ret;
 
 	if (NULL == table || table->count <= 0)
 		return -EINVAL;
@@ -645,7 +652,9 @@ static int smu8_init_acp_limit(struct pp_hwmgr *hwmgr)
 	data->acp_dpm.soft_min_clk = 0;
 	data->acp_dpm.hard_min_clk = 0;
 
-	smum_send_msg_to_smc(hwmgr, PPSMC_MSG_GetMaxAclkLevel, &level);
+	ret = smum_send_msg_to_smc(hwmgr, PPSMC_MSG_GetMaxAclkLevel, &level);
+	if (ret)
+		return ret;
 
 	if (level < table->count)
 		clock = table->entries[level].acpclk;