the smu v13.0.6 driver should handle return value of smu_v13_0_6_print_clks()
to avoid null pointer issue.

Fixes: 0354cd650daa ("drm/amd/pm: Avoid writing nulls into `pp_od_clk_voltage`")

Signed-off-by: Yang Wang <[email protected]>
---
 .../drm/amd/pm/swsmu/smu13/smu_v13_0_6_ppt.c  | 41 ++++++++++++++-----
 1 file changed, 31 insertions(+), 10 deletions(-)

diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_6_ppt.c 
b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_6_ppt.c
index 39ae6701147c..22fe4d3508fd 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_6_ppt.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_6_ppt.c
@@ -1514,9 +1514,14 @@ static int smu_v13_0_6_print_clk_levels(struct 
smu_context *smu,
 
                single_dpm_table = &(dpm_context->dpm_tables.uclk_table);
 
-               return smu_v13_0_6_print_clks(smu, buf, size, single_dpm_table,
-                                             now, "mclk");
+               ret = smu_v13_0_6_print_clks(smu, buf, size, single_dpm_table,
+                                            now, "mclk");
+               if (ret < 0)
+                       return ret;
+
+               size += ret;
 
+               break;
        case SMU_SOCCLK:
                ret = smu_v13_0_6_get_current_clk_freq_by_table(smu, SMU_SOCCLK,
                                                                &now);
@@ -1528,9 +1533,13 @@ static int smu_v13_0_6_print_clk_levels(struct 
smu_context *smu,
 
                single_dpm_table = &(dpm_context->dpm_tables.soc_table);
 
-               return smu_v13_0_6_print_clks(smu, buf, size, single_dpm_table,
-                                             now, "socclk");
+               ret = smu_v13_0_6_print_clks(smu, buf, size, single_dpm_table,
+                                            now, "socclk");
+               if (ret < 0)
+                       return ret;
 
+               size += ret;
+               break;
        case SMU_FCLK:
                ret = smu_v13_0_6_get_current_clk_freq_by_table(smu, SMU_FCLK,
                                                                &now);
@@ -1542,9 +1551,13 @@ static int smu_v13_0_6_print_clk_levels(struct 
smu_context *smu,
 
                single_dpm_table = &(dpm_context->dpm_tables.fclk_table);
 
-               return smu_v13_0_6_print_clks(smu, buf, size, single_dpm_table,
-                                             now, "fclk");
+               ret = smu_v13_0_6_print_clks(smu, buf, size, single_dpm_table,
+                                            now, "fclk");
+               if (ret < 0)
+                       return ret;
 
+               size += ret;
+               break;
        case SMU_VCLK:
                ret = smu_v13_0_6_get_current_clk_freq_by_table(smu, SMU_VCLK,
                                                                &now);
@@ -1556,9 +1569,13 @@ static int smu_v13_0_6_print_clk_levels(struct 
smu_context *smu,
 
                single_dpm_table = &(dpm_context->dpm_tables.vclk_table);
 
-               return smu_v13_0_6_print_clks(smu, buf, size, single_dpm_table,
-                                             now, "vclk");
+               ret = smu_v13_0_6_print_clks(smu, buf, size, single_dpm_table,
+                                            now, "vclk");
+               if (ret < 0)
+                       return ret;
 
+               size += ret;
+               break;
        case SMU_DCLK:
                ret = smu_v13_0_6_get_current_clk_freq_by_table(smu, SMU_DCLK,
                                                               &now);
@@ -1570,9 +1587,13 @@ static int smu_v13_0_6_print_clk_levels(struct 
smu_context *smu,
 
                single_dpm_table = &(dpm_context->dpm_tables.dclk_table);
 
-               return smu_v13_0_6_print_clks(smu, buf, size, single_dpm_table,
-                                             now, "dclk");
+               ret = smu_v13_0_6_print_clks(smu, buf, size, single_dpm_table,
+                                            now, "dclk");
+               if (ret < 0)
+                       return ret;
 
+               size += ret;
+               break;
        default:
                break;
        }
-- 
2.34.1

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