From 8d91c1e411f55d7ea91b1183a2e9f8088fb4d5be Mon Sep 17 00:00:00 2001 From: André Fabian Silva Delgado Date: Tue, 15 Dec 2015 14:52:16 -0300 Subject: Linux-libre 4.3.2-gnu --- drivers/video/fbdev/vfb.c | 17 ++++++++--------- 1 file changed, 8 insertions(+), 9 deletions(-) (limited to 'drivers/video/fbdev/vfb.c') diff --git a/drivers/video/fbdev/vfb.c b/drivers/video/fbdev/vfb.c index 70a897b1e..b9c2f81fb 100644 --- a/drivers/video/fbdev/vfb.c +++ b/drivers/video/fbdev/vfb.c @@ -51,7 +51,14 @@ static void *rvmalloc(unsigned long size) if (!mem) return NULL; - memset(mem, 0, size); /* Clear the ram out, no junk to the user */ + /* + * VFB must clear memory to prevent kernel info + * leakage into userspace + * VGA-based drivers MUST NOT clear memory if + * they want to be able to take over vgacon + */ + + memset(mem, 0, size); adr = (unsigned long) mem; while (size > 0) { SetPageReserved(vmalloc_to_page((void *)adr)); @@ -490,14 +497,6 @@ static int vfb_probe(struct platform_device *dev) if (!(videomemory = rvmalloc(videomemorysize))) return retval; - /* - * VFB must clear memory to prevent kernel info - * leakage into userspace - * VGA-based drivers MUST NOT clear memory if - * they want to be able to take over vgacon - */ - memset(videomemory, 0, videomemorysize); - info = framebuffer_alloc(sizeof(u32) * 256, &dev->dev); if (!info) goto err; -- cgit v1.2.3-54-g00ecf