drm/amdgpu: fix the coding style in amdgpu_ring.c

 * wptr.  The GPU then starts fetching commands and executes

 * them until the pointers are equal again.

 */

static int amdgpu_debugfs_ring_init(struct amdgpu_device *adev, struct amdgpu_ring *ring);

static int amdgpu_debugfs_ring_init(struct amdgpu_device *adev,

				    struct amdgpu_ring *ring);

/**

 * amdgpu_ring_alloc - allocate space on the ring buffer

		dev_err(adev->dev, "(%d) ring next_rptr wb alloc failed\n", r);

		return r;

	}

	ring->next_rptr_gpu_addr = adev->wb.gpu_addr + (ring->next_rptr_offs * 4);

	ring->next_rptr_gpu_addr = adev->wb.gpu_addr + ring->next_rptr_offs * 4;

	ring->next_rptr_cpu_addr = &adev->wb.wb[ring->next_rptr_offs];

	r = amdgpu_wb_get(adev, &ring->cond_exe_offs);