From: Benjamin Herrenschmidt Date: Fri, 10 Jun 2005 23:45:30 +0000 (+1000) Subject: [PATCH] radeonfb: don't blow up VGA console on load X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=8d5f7b4353dae4c7ee342c61303372fd996ca161;p=GitHub%2FLineageOS%2Fandroid_kernel_samsung_universal7580.git [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 Signed-off-by: Linus Torvalds --- diff --git a/drivers/video/aty/radeon_base.c b/drivers/video/aty/radeon_base.c index ee25b9e8db6..47a6b12bc96 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; }