drm/msm: drop return from gpu->submit()

At this point, there is nothing left to fail.  And submit already has a
fence assigned and is added to the submit_list.  Any problems from here
on out are asynchronous (ie. hangcheck/recovery).
Signed-off-by: Rob Clark <robdclark@gmail.com>

drivers/gpu/drm/msm/adreno/adreno_gpu.c

@@ -133,7 +133,7 @@ void adreno_recover(struct msm_gpu *gpu)
 	}
 }
 
-int adreno_submit(struct msm_gpu *gpu, struct msm_gem_submit *submit,
+void adreno_submit(struct msm_gpu *gpu, struct msm_gem_submit *submit,
 		struct msm_file_private *ctx)
 {
 	struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu);
@@ -212,8 +212,6 @@ int adreno_submit(struct msm_gpu *gpu, struct msm_gem_submit *submit,
 #endif
 
 	gpu->funcs->flush(gpu);
-
-	return 0;
 }
 
 void adreno_flush(struct msm_gpu *gpu)

drivers/gpu/drm/msm/adreno/adreno_gpu.h

@@ -238,7 +238,7 @@ int adreno_get_param(struct msm_gpu *gpu, uint32_t param, uint64_t *value);
 int adreno_hw_init(struct msm_gpu *gpu);
 uint32_t adreno_last_fence(struct msm_gpu *gpu);
 void adreno_recover(struct msm_gpu *gpu);
-int adreno_submit(struct msm_gpu *gpu, struct msm_gem_submit *submit,
+void adreno_submit(struct msm_gpu *gpu, struct msm_gem_submit *submit,
 		struct msm_file_private *ctx);
 void adreno_flush(struct msm_gpu *gpu);
 void adreno_idle(struct msm_gpu *gpu);

drivers/gpu/drm/msm/msm_gpu.c

@@ -540,12 +540,12 @@ int msm_gpu_submit(struct msm_gpu *gpu, struct msm_gem_submit *submit,
 			msm_gem_move_to_active(&msm_obj->base, gpu, false, submit->fence);
 	}
 
-	ret = gpu->funcs->submit(gpu, submit, ctx);
+	gpu->funcs->submit(gpu, submit, ctx);
 	priv->lastctx = ctx;
 
 	hangcheck_timer_reset(gpu);
 
-	return ret;
+	return 0;
 }
 
 /*

drivers/gpu/drm/msm/msm_gpu.h

@@ -47,7 +47,7 @@ struct msm_gpu_funcs {
 	int (*hw_init)(struct msm_gpu *gpu);
 	int (*pm_suspend)(struct msm_gpu *gpu);
 	int (*pm_resume)(struct msm_gpu *gpu);
-	int (*submit)(struct msm_gpu *gpu, struct msm_gem_submit *submit,
+	void (*submit)(struct msm_gpu *gpu, struct msm_gem_submit *submit,
 			struct msm_file_private *ctx);
 	void (*flush)(struct msm_gpu *gpu);
 	void (*idle)(struct msm_gpu *gpu);