drm/amdgpu/powerplay/tonga: return an error if copying to smc fails

Rather than just silently dropping it.  Also fixes a set but
unused variable warning.

Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/pm/powerplay/smumgr/tonga_smumgr.c b/drivers/gpu/drm/amd/pm/powerplay/smumgr/tonga_smumgr.c
index 4bfadb49521bcedbaea683df4c6325c1d4bca795..04b561f5d932bc2620a7436befc6c759ef9bdf31 100644 (file)
--- a/drivers/gpu/drm/amd/pm/powerplay/smumgr/tonga_smumgr.c
+++ b/drivers/gpu/drm/amd/pm/powerplay/smumgr/tonga_smumgr.c
@@ -2545,7 +2545,7 @@ static int tonga_thermal_setup_fan_table(struct pp_hwmgr *hwmgr)
                                        (uint32_t)sizeof(fan_table),
                                        SMC_RAM_END);
 
-       return 0;
+       return res;
 }