media: mediatek: vcodec: Replace dev_name in error string

mtk_v4l2_err() already uses dev_err(), so don't print the device name
again. Print the function name instead.
Signed-off-by: Fei Shao <fshao@chromium.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com>
Signed-off-by: Sebastian Fricke <sebastian.fricke@collabora.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

drivers/media/platform/mediatek/vcodec/common/mtk_vcodec_util.c

@@ -67,7 +67,7 @@ int mtk_vcodec_mem_alloc(void *priv, struct mtk_vcodec_mem *mem)
 	mem->va = dma_alloc_coherent(&plat_dev->dev, size, &mem->dma_addr, GFP_KERNEL);
 	if (!mem->va) {
 		mtk_v4l2_err(plat_dev, "%s dma_alloc size=%ld failed!",
-			     dev_name(&plat_dev->dev), size);
+			     __func__, size);
 		return -ENOMEM;
 	}
 
@@ -99,7 +99,7 @@ void mtk_vcodec_mem_free(void *priv, struct mtk_vcodec_mem *mem)
 
 	if (!mem->va) {
 		mtk_v4l2_err(plat_dev, "%s dma_free size=%ld failed!",
-			     dev_name(&plat_dev->dev), size);
+			     __func__, size);
 		return;
 	}