From 8d5f7b4353dae4c7ee342c61303372fd996ca161 Mon Sep 17 00:00:00 2001
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: Sat, 11 Jun 2005 09:45:30 +1000
Subject: [PATCH] [PATCH] radeonfb: don't blow up VGA console on load

The current radeonfb memset's the framebuffer to 0 when loaded.  This
removes occasional artifacts but has the nasty side effect that if you
load radeonfb without framebuffer console, you destroy the VGA text
buffer, font, etc...  radeon must not touch the framebuffer content when
it doesn't "own" it.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---
 drivers/video/aty/radeon_base.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/video/aty/radeon_base.c b/drivers/video/aty/radeon_base.c
index ee25b9e8db60..47a6b12bc968 100644
--- a/drivers/video/aty/radeon_base.c
+++ b/drivers/video/aty/radeon_base.c
@@ -2374,10 +2374,9 @@ static int radeonfb_pci_register (struct pci_dev *pdev,
 	} while (   rinfo->fb_base == 0 &&
 		  ((rinfo->mapped_vram /=2) >= MIN_MAPPED_VRAM) );
 
-	if (rinfo->fb_base)
-		memset_io(rinfo->fb_base, 0, rinfo->mapped_vram);
-	else {
-		printk (KERN_ERR "radeonfb (%s): cannot map FB\n", pci_name(rinfo->pdev));
+	if (rinfo->fb_base == NULL) {
+		printk (KERN_ERR "radeonfb (%s): cannot map FB\n",
+			pci_name(rinfo->pdev));
 		ret = -EIO;
 		goto err_unmap_rom;
 	}
-- 
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