media: verisilicon: Simplify error handling in tile_buffer_reallocate()

Rework allocation errors cases handling to simply it
by removing useless tests.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
Reported-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>

drivers/media/platform/verisilicon/hantro_hevc.c

@@ -109,7 +109,7 @@ static int tile_buffer_reallocate(struct hantro_ctx *ctx)
 						       &hevc_dec->tile_filter.dma,
 						       GFP_KERNEL);
 	if (!hevc_dec->tile_filter.cpu)
-		goto err_free_tile_buffers;
+		return -ENOMEM;
 	hevc_dec->tile_filter.size = size;
 
 	size = (VERT_SAO_RAM_SIZE * height64 * (num_tile_cols - 1) * ctx->bit_depth) / 8;
@@ -125,31 +125,26 @@ static int tile_buffer_reallocate(struct hantro_ctx *ctx)
 						    &hevc_dec->tile_bsd.dma,
 						    GFP_KERNEL);
 	if (!hevc_dec->tile_bsd.cpu)
-		goto err_free_tile_buffers;
+		goto err_free_sao_buffers;
 	hevc_dec->tile_bsd.size = size;
 
 	hevc_dec->num_tile_cols_allocated = num_tile_cols;
 
 	return 0;
 
-err_free_tile_buffers:
-	if (hevc_dec->tile_filter.cpu)
-		dma_free_coherent(vpu->dev, hevc_dec->tile_filter.size,
-				  hevc_dec->tile_filter.cpu,
-				  hevc_dec->tile_filter.dma);
-	hevc_dec->tile_filter.cpu = NULL;
-
+err_free_sao_buffers:
 	if (hevc_dec->tile_sao.cpu)
 		dma_free_coherent(vpu->dev, hevc_dec->tile_sao.size,
 				  hevc_dec->tile_sao.cpu,
 				  hevc_dec->tile_sao.dma);
 	hevc_dec->tile_sao.cpu = NULL;
 
-	if (hevc_dec->tile_bsd.cpu)
-		dma_free_coherent(vpu->dev, hevc_dec->tile_bsd.size,
-				  hevc_dec->tile_bsd.cpu,
-				  hevc_dec->tile_bsd.dma);
-	hevc_dec->tile_bsd.cpu = NULL;
+err_free_tile_buffers:
+	if (hevc_dec->tile_filter.cpu)
+		dma_free_coherent(vpu->dev, hevc_dec->tile_filter.size,
+				  hevc_dec->tile_filter.cpu,
+				  hevc_dec->tile_filter.dma);
+	hevc_dec->tile_filter.cpu = NULL;
 
 	return -ENOMEM;
 }