6.1-stable review patch. If anyone has any objections, please let me know.
------------------
From: Ma Jun <Jun.Ma2@xxxxxxx>
[ Upstream commit 336c8f558d596699d3d9814a45600139b2f23f27 ]
Check return value of smum_send_msg_to_smc to fix
uninitialized variable varning
Signed-off-by: Ma Jun <Jun.Ma2@xxxxxxx>
Acked-by: Alex Deucher <alexander.deucher@xxxxxxx>
Reviewed-by: Yang Wang <kevinyang.wang@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
.../drm/amd/pm/powerplay/hwmgr/smu10_hwmgr.c | 21 +++++++++++++----
.../drm/amd/pm/powerplay/hwmgr/vega12_hwmgr.c | 20 ++++++++++++----
.../drm/amd/pm/powerplay/hwmgr/vega20_hwmgr.c | 23 ++++++++++++++-----
3 files changed, 48 insertions(+), 16 deletions(-)
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 e4d524ae5a77..4f3488f4e0d0 100644
--- a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu10_hwmgr.c
+++ b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu10_hwmgr.c
@@ -1554,7 +1554,10 @@ static int smu10_set_fine_grain_clk_vol(struct pp_hwmgr *hwmgr,
}
if (input[0] == 0) {
- smum_send_msg_to_smc(hwmgr, PPSMC_MSG_GetMinGfxclkFrequency, &min_freq);
+ ret = smum_send_msg_to_smc(hwmgr, PPSMC_MSG_GetMinGfxclkFrequency, &min_freq);
+ if (ret)
+ return ret;
+
if (input[1] < min_freq) {
pr_err("Fine grain setting minimum sclk (%ld) MHz is less than the minimum allowed (%d) MHz\n",
input[1], min_freq);
@@ -1562,7 +1565,10 @@ static int smu10_set_fine_grain_clk_vol(struct pp_hwmgr *hwmgr,
}
smu10_data->gfx_actual_soft_min_freq = input[1];
} else if (input[0] == 1) {
- smum_send_msg_to_smc(hwmgr, PPSMC_MSG_GetMaxGfxclkFrequency, &max_freq);
+ ret = smum_send_msg_to_smc(hwmgr, PPSMC_MSG_GetMaxGfxclkFrequency, &max_freq);
+ if (ret)
+ return ret;
+
if (input[1] > max_freq) {
pr_err("Fine grain setting maximum sclk (%ld) MHz is greater than the maximum allowed (%d) MHz\n",
input[1], max_freq);
@@ -1577,10 +1583,15 @@ static int smu10_set_fine_grain_clk_vol(struct pp_hwmgr *hwmgr,
pr_err("Input parameter number not correct\n");
return -EINVAL;
}
- smum_send_msg_to_smc(hwmgr, PPSMC_MSG_GetMinGfxclkFrequency, &min_freq);
- smum_send_msg_to_smc(hwmgr, PPSMC_MSG_GetMaxGfxclkFrequency, &max_freq);
-
+ ret = smum_send_msg_to_smc(hwmgr, PPSMC_MSG_GetMinGfxclkFrequency, &min_freq);
+ if (ret)
+ return ret;
smu10_data->gfx_actual_soft_min_freq = min_freq;
+
+ ret = smum_send_msg_to_smc(hwmgr, PPSMC_MSG_GetMaxGfxclkFrequency, &max_freq);
+ if (ret)
+ return ret;
+
smu10_data->gfx_actual_soft_max_freq = max_freq;
} else if (type == PP_OD_COMMIT_DPM_TABLE) {
if (size != 0) {
diff --git a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega12_hwmgr.c b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega12_hwmgr.c
index 1069eaaae2f8..e4948a118475 100644
--- a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega12_hwmgr.c
+++ b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega12_hwmgr.c
@@ -294,12 +294,12 @@ static int vega12_set_features_platform_caps(struct pp_hwmgr *hwmgr)
return 0;
}
-static void vega12_init_dpm_defaults(struct pp_hwmgr *hwmgr)
+static int vega12_init_dpm_defaults(struct pp_hwmgr *hwmgr)
{
struct vega12_hwmgr *data = (struct vega12_hwmgr *)(hwmgr->backend);
struct amdgpu_device *adev = hwmgr->adev;
uint32_t top32, bottom32;
- int i;
+ int i, ret;
data->smu_features[GNLD_DPM_PREFETCHER].smu_feature_id =
FEATURE_DPM_PREFETCHER_BIT;
@@ -365,10 +365,16 @@ static void vega12_init_dpm_defaults(struct pp_hwmgr *hwmgr)
}
/* Get the SN to turn into a Unique ID */
- smum_send_msg_to_smc(hwmgr, PPSMC_MSG_ReadSerialNumTop32, &top32);
- smum_send_msg_to_smc(hwmgr, PPSMC_MSG_ReadSerialNumBottom32, &bottom32);
+ ret = smum_send_msg_to_smc(hwmgr, PPSMC_MSG_ReadSerialNumTop32, &top32);
+ if (ret)
+ return ret;
+ ret = smum_send_msg_to_smc(hwmgr, PPSMC_MSG_ReadSerialNumBottom32, &bottom32);
+ if (ret)
+ return ret;
adev->unique_id = ((uint64_t)bottom32 << 32) | top32;
+
+ return 0;
}
static int vega12_set_private_data_based_on_pptable(struct pp_hwmgr *hwmgr)
@@ -411,7 +417,11 @@ static int vega12_hwmgr_backend_init(struct pp_hwmgr *hwmgr)
vega12_set_features_platform_caps(hwmgr);
- vega12_init_dpm_defaults(hwmgr);
+ result = vega12_init_dpm_defaults(hwmgr);
+ if (result) {
+ pr_err("%s failed\n", __func__);
+ return result;
+ }
/* Parse pptable data read from VBIOS */
vega12_set_private_data_based_on_pptable(hwmgr);
diff --git a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega20_hwmgr.c b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega20_hwmgr.c
index ff77a3683efd..7606db479bad 100644
--- a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega20_hwmgr.c
+++ b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega20_hwmgr.c
@@ -329,12 +329,12 @@ static int vega20_set_features_platform_caps(struct pp_hwmgr *hwmgr)
return 0;
}
-static void vega20_init_dpm_defaults(struct pp_hwmgr *hwmgr)
+static int vega20_init_dpm_defaults(struct pp_hwmgr *hwmgr)
{
struct vega20_hwmgr *data = (struct vega20_hwmgr *)(hwmgr->backend);
struct amdgpu_device *adev = hwmgr->adev;
uint32_t top32, bottom32;
- int i;
+ int i, ret;
data->smu_features[GNLD_DPM_PREFETCHER].smu_feature_id =
FEATURE_DPM_PREFETCHER_BIT;
@@ -405,10 +405,17 @@ static void vega20_init_dpm_defaults(struct pp_hwmgr *hwmgr)
}
/* Get the SN to turn into a Unique ID */
- smum_send_msg_to_smc(hwmgr, PPSMC_MSG_ReadSerialNumTop32, &top32);
- smum_send_msg_to_smc(hwmgr, PPSMC_MSG_ReadSerialNumBottom32, &bottom32);
+ ret = smum_send_msg_to_smc(hwmgr, PPSMC_MSG_ReadSerialNumTop32, &top32);
+ if (ret)
+ return ret;
+
+ ret = smum_send_msg_to_smc(hwmgr, PPSMC_MSG_ReadSerialNumBottom32, &bottom32);
+ if (ret)
+ return ret;
adev->unique_id = ((uint64_t)bottom32 << 32) | top32;
+
+ return 0;
}
static int vega20_set_private_data_based_on_pptable(struct pp_hwmgr *hwmgr)
@@ -428,6 +435,7 @@ static int vega20_hwmgr_backend_init(struct pp_hwmgr *hwmgr)
{
struct vega20_hwmgr *data;
struct amdgpu_device *adev = hwmgr->adev;
+ int result;
data = kzalloc(sizeof(struct vega20_hwmgr), GFP_KERNEL);
if (data == NULL)
@@ -453,8 +461,11 @@ static int vega20_hwmgr_backend_init(struct pp_hwmgr *hwmgr)
vega20_set_features_platform_caps(hwmgr);
- vega20_init_dpm_defaults(hwmgr);
-
+ result = vega20_init_dpm_defaults(hwmgr);
+ if (result) {
+ pr_err("%s failed\n", __func__);
+ return result;
+ }
/* Parse pptable data read from VBIOS */
vega20_set_private_data_based_on_pptable(hwmgr);
--
2.43.0
