From: Antonino A. Daplas <adaplas@gmail.com>
Date: Tue, 10 Jan 2006 04:53:18 +0000 (-0800)
Subject: [PATCH] Fix vesafb display panning regression
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=e53f87a02a0d77c519fb93c7aa0912956294050c;p=deliverable%2Flinux.git

[PATCH] Fix vesafb display panning regression

Fix vesafb hang when scroll mode is REDRAW.

Signed-off-by: Antonino Daplas <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/drivers/video/vesafb.c b/drivers/video/vesafb.c
index e6e56b8df2db..8982e540214c 100644
--- a/drivers/video/vesafb.c
+++ b/drivers/video/vesafb.c
@@ -417,6 +417,9 @@ static int __init vesafb_probe(struct platform_device *dev)
 	info->flags = FBINFO_FLAG_DEFAULT |
 		(ypan) ? FBINFO_HWACCEL_YPAN : 0;
 
+	if (!ypan)
+		info->fbops->fb_pan_display = NULL;
+
 	if (fb_alloc_cmap(&info->cmap, 256, 0) < 0) {
 		err = -ENOMEM;
 		goto err;