drivers/amd/pm: check the return value of amdgpu_bo_kmap

amdgpu_bo_kmap() returns error when fails to map buffer object. Add the
error check and propagate the error.

Signed-off-by: Li Zhong <floridsleeves@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/pm/legacy-dpm/kv_dpm.c b/drivers/gpu/drm/amd/pm/legacy-dpm/kv_dpm.c
index 8fd0782a2b206712ae4782efbb7bd157a551546e..f5e08b60f66ef9fa2d84bd2a86d712a839928e36 100644 (file)
--- a/drivers/gpu/drm/amd/pm/legacy-dpm/kv_dpm.c
+++ b/drivers/gpu/drm/amd/pm/legacy-dpm/kv_dpm.c
@@ -1384,13 +1384,16 @@ static int kv_dpm_enable(struct amdgpu_device *adev)
 static void kv_dpm_disable(struct amdgpu_device *adev)
 {
        struct kv_power_info *pi = kv_get_pi(adev);
+       int err;
 
        amdgpu_irq_put(adev, &adev->pm.dpm.thermal.irq,
                       AMDGPU_THERMAL_IRQ_LOW_TO_HIGH);
        amdgpu_irq_put(adev, &adev->pm.dpm.thermal.irq,
                       AMDGPU_THERMAL_IRQ_HIGH_TO_LOW);
 
-       amdgpu_kv_smc_bapm_enable(adev, false);
+       err = amdgpu_kv_smc_bapm_enable(adev, false);
+       if (err)
+               DRM_ERROR("amdgpu_kv_smc_bapm_enable failed\n");
 
        if (adev->asic_type == CHIP_MULLINS)
                kv_enable_nb_dpm(adev, false);