drm/amdgpu/pm: Check the return value of smum_send_msg_to_smc

From Ma Jun
a2f2beaba783e5e99b05bb455b701257e6f1fa37 in linux-6.6.y/6.6.50
579f0c21baec9e7506b6bb3f60f0a9b6d07693b4 in mainline linux

diff --git a/sys/dev/pci/drm/amd/pm/powerplay/hwmgr/smu10_hwmgr.c b/sys/dev/pci/drm/amd/pm/powerplay/hwmgr/smu10_hwmgr.c
index 813621b..40d5f00 100644 (file)
--- a/sys/dev/pci/drm/amd/pm/powerplay/hwmgr/smu10_hwmgr.c
+++ b/sys/dev/pci/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 += snprintf(buf + size, PAGE_SIZE - size, "%d: %uMhz %s\n",