Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/drivers/video/fbdev/imxfb.c b/drivers/video/fbdev/imxfb.c
index c4eb866..b3286d1 100644
--- a/drivers/video/fbdev/imxfb.c
+++ b/drivers/video/fbdev/imxfb.c
@@ -974,10 +974,9 @@
 	}
 
 	fbi->map_size = PAGE_ALIGN(info->fix.smem_len);
-	info->screen_base = dma_alloc_wc(&pdev->dev, fbi->map_size,
-					 &fbi->map_dma, GFP_KERNEL);
-
-	if (!info->screen_base) {
+	info->screen_buffer = dma_alloc_wc(&pdev->dev, fbi->map_size,
+					   &fbi->map_dma, GFP_KERNEL);
+	if (!info->screen_buffer) {
 		dev_err(&pdev->dev, "Failed to allocate video RAM: %d\n", ret);
 		ret = -ENOMEM;
 		goto failed_map;
@@ -1046,7 +1045,7 @@
 	if (pdata && pdata->exit)
 		pdata->exit(fbi->pdev);
 failed_platform_init:
-	dma_free_wc(&pdev->dev, fbi->map_size, info->screen_base,
+	dma_free_wc(&pdev->dev, fbi->map_size, info->screen_buffer,
 		    fbi->map_dma);
 failed_map:
 	iounmap(fbi->regs);
@@ -1077,7 +1076,7 @@
 	pdata = dev_get_platdata(&pdev->dev);
 	if (pdata && pdata->exit)
 		pdata->exit(fbi->pdev);
-	dma_free_wc(&pdev->dev, fbi->map_size, info->screen_base,
+	dma_free_wc(&pdev->dev, fbi->map_size, info->screen_buffer,
 		    fbi->map_dma);
 	iounmap(fbi->regs);
 	release_mem_region(res->start, resource_size(res));