drm/radeon: use aperture size not vram size for overlap tests

This fixes a problem where the wrong card conflicts with vesafb in my
x2 system.

Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/gpu/drm/radeon/radeon_fb.c b/drivers/gpu/drm/radeon/radeon_fb.c
index efa211898fe6..6abea32be5e8 100644
--- a/drivers/gpu/drm/radeon/radeon_fb.c
+++ b/drivers/gpu/drm/radeon/radeon_fb.c
@@ -245,7 +245,7 @@ static int radeonfb_create(struct radeon_fbdev *rfbdev,
                 goto out_unref;
         }
         info->apertures->ranges[0].base = rdev->ddev->mode_config.fb_base;
-        info->apertures->ranges[0].size = rdev->mc.real_vram_size;
+        info->apertures->ranges[0].size = rdev->mc.aper_size;
 
         info->fix.mmio_start = 0;
         info->fix.mmio_len = 0;