diff options
Diffstat (limited to 'kernel/drivers/video/fbdev/vfb.c')
| -rw-r--r-- | kernel/drivers/video/fbdev/vfb.c | 17 |
1 files changed, 8 insertions, 9 deletions
diff --git a/kernel/drivers/video/fbdev/vfb.c b/kernel/drivers/video/fbdev/vfb.c index 70a897b1e..b9c2f81fb 100644 --- a/kernel/drivers/video/fbdev/vfb.c +++ b/kernel/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; |