drm/amd/pm: fix uninitialized variable warning

Check the return of function smum_send_msg_to_smc
as it may fail to initialize the variable.

Signed-off-by: Jesse Zhang <Jesse.Zhang@amd.com>
Reviewed-by: Yang Wang <kevinyang.wang@amd.com>
Reviewed-by: Tim Huang <Tim.Huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/pm/powerplay/amd_powerplay.c b/drivers/gpu/drm/amd/pm/powerplay/amd_powerplay.c
index 5fb21a0508cd993acccf18cf632955740878590e..1c40a362d5ab4413a1ea7e35679e1f2c584ad797 100644 (file)
--- a/drivers/gpu/drm/amd/pm/powerplay/amd_powerplay.c
+++ b/drivers/gpu/drm/amd/pm/powerplay/amd_powerplay.c
@@ -99,7 +99,7 @@ static void pp_swctf_delayed_work_handler(struct work_struct *work)
        struct amdgpu_device *adev = hwmgr->adev;
        struct amdgpu_dpm_thermal *range =
                                &adev->pm.dpm.thermal;
-       uint32_t gpu_temperature, size;
+       uint32_t gpu_temperature, size = sizeof(gpu_temperature);
        int ret;
 
        /*