From: Fuqian Huang <huangfq.daxian@gmail.com>
Date: Mon, 15 Jul 2019 03:20:17 +0000 (+0800)
Subject: video: fbdev-MMP: Remove call to memset after dma_alloc_coherent
X-Git-Tag: v5.4-rc1~106^2~18^2~132
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=8cbff03bb090d537063c935058ab6fceb8ee30f5;p=thirdparty%2Fkernel%2Flinux.git

video: fbdev-MMP: Remove call to memset after dma_alloc_coherent

In commit 518a2f1925c3
("dma-mapping: zero memory returned from dma_alloc_*"),
dma_alloc_coherent has already zeroed the memory.
So memset is not needed.

Signed-off-by: Fuqian Huang <huangfq.daxian@gmail.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190715032017.7311-1-huangfq.daxian@gmail.com
---

diff --git a/drivers/video/fbdev/mmp/fb/mmpfb.c b/drivers/video/fbdev/mmp/fb/mmpfb.c
index e5b56f2199df8..47bc7c59bbd85 100644
--- a/drivers/video/fbdev/mmp/fb/mmpfb.c
+++ b/drivers/video/fbdev/mmp/fb/mmpfb.c
@@ -612,7 +612,6 @@ static int mmpfb_probe(struct platform_device *pdev)
 		ret = -ENOMEM;
 		goto failed_destroy_mutex;
 	}
-	memset(fbi->fb_start, 0, fbi->fb_size);
 	dev_info(fbi->dev, "fb %dk allocated\n", fbi->fb_size/1024);
 
 	/* fb power on */