media: atomisp: better describe get_frame_info issues

When atomisp is used by a normal client, it fails to get
frame info. However, the information is confusing and misleading,
as there are several wrappers for such function, and the error
could be on different places.

So, improve the error log in order to allow narrowing down
where the error is actually occuring.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

drivers/staging/media/atomisp/pci/atomisp_cmd.c

@@ -5453,9 +5453,9 @@ static int atomisp_set_fmt_to_isp(struct video_device *vdev,
 	else
 		ret = get_frame_info(asd, output_info);
 	if (ret) {
-		dev_err(isp->dev, "get_frame_info %ux%u (padded to %u)\n",
-			pix->width, pix->height, pix->bytesperline);
-		return -EINVAL;
+		dev_err(isp->dev, "__get_frame_info %ux%u (padded to %u) returned %d\n",
+			pix->width, pix->height, pix->bytesperline, ret);
+		return ret;
 	}
 
 	atomisp_update_grid_info(asd, pipe_id, source_pad);

drivers/staging/media/atomisp/pci/atomisp_compat_css20.c

@@ -2657,42 +2657,49 @@ static int __get_frame_info(struct atomisp_sub_device *asd,
 	if (__destroy_pipes(asd, true))
 		dev_warn(isp->dev, "destroy pipe failed.\n");
 
-	if (__create_pipes(asd))
+	if (__create_pipes(asd)) {
+		dev_err(isp->dev, "can't create pipes\n");
 		return -EINVAL;
+	}
 
-	if (__create_streams(asd))
+	if (__create_streams(asd)) {
+		dev_err(isp->dev, "can't create streams\n");
 		goto stream_err;
+	}
 
-	ret = ia_css_pipe_get_info(
-		  asd->stream_env[stream_index]
-		  .pipes[pipe_id], &p_info);
-	if (!ret) {
-		switch (type) {
-		case ATOMISP_CSS_VF_FRAME:
-			*info = p_info.vf_output_info[0];
-			dev_dbg(isp->dev, "getting vf frame info.\n");
-			break;
-		case ATOMISP_CSS_SECOND_VF_FRAME:
-			*info = p_info.vf_output_info[1];
-			dev_dbg(isp->dev, "getting second vf frame info.\n");
-			break;
-		case ATOMISP_CSS_OUTPUT_FRAME:
-			*info = p_info.output_info[0];
-			dev_dbg(isp->dev, "getting main frame info.\n");
-			break;
-		case ATOMISP_CSS_SECOND_OUTPUT_FRAME:
-			*info = p_info.output_info[1];
-			dev_dbg(isp->dev, "getting second main frame info.\n");
-			break;
-		case ATOMISP_CSS_RAW_FRAME:
-			*info = p_info.raw_output_info;
-			dev_dbg(isp->dev, "getting raw frame info.\n");
-		}
-		dev_dbg(isp->dev, "get frame info: w=%d, h=%d, num_invalid_frames %d.\n",
-			info->res.width, info->res.height, p_info.num_invalid_frames);
-		return 0;
+	ret = ia_css_pipe_get_info(asd->stream_env[stream_index].pipes[pipe_id],
+				   &p_info);
+	if (ret) {
+		dev_err(isp->dev, "can't get info from pipe\n");
+		goto stream_err;
 	}
 
+	switch (type) {
+	case ATOMISP_CSS_VF_FRAME:
+		*info = p_info.vf_output_info[0];
+		dev_dbg(isp->dev, "getting vf frame info.\n");
+		break;
+	case ATOMISP_CSS_SECOND_VF_FRAME:
+		*info = p_info.vf_output_info[1];
+		dev_dbg(isp->dev, "getting second vf frame info.\n");
+		break;
+	case ATOMISP_CSS_OUTPUT_FRAME:
+		*info = p_info.output_info[0];
+		dev_dbg(isp->dev, "getting main frame info.\n");
+		break;
+	case ATOMISP_CSS_SECOND_OUTPUT_FRAME:
+		*info = p_info.output_info[1];
+		dev_dbg(isp->dev, "getting second main frame info.\n");
+		break;
+	case ATOMISP_CSS_RAW_FRAME:
+		*info = p_info.raw_output_info;
+		dev_dbg(isp->dev, "getting raw frame info.\n");
+	}
+	dev_dbg(isp->dev, "get frame info: w=%d, h=%d, num_invalid_frames %d.\n",
+		info->res.width, info->res.height, p_info.num_invalid_frames);
+
+	return 0;
+
 stream_err:
 	__destroy_pipes(asd, true);
 	return -EINVAL;