drm: Fix sparce warning in radeon driver

From: Luiz Fernando Capitulino <lcapitulino@mandriva.com.br>

drivers/char/drm/radeon_cp.c:1643:31: warning: Using plain integer as NULL
pointer

Signed-off-by: Luiz Capitulino <lcapitulino@mandriva.com.br>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Dave Airlie <airlied@linux.ie>

diff --git a/drivers/char/drm/radeon_cp.c b/drivers/char/drm/radeon_cp.c
index 915665c..9bb8ae0 100644 (file)
--- a/drivers/char/drm/radeon_cp.c
+++ b/drivers/char/drm/radeon_cp.c
@@ -1640,7 +1640,7 @@ static int radeon_do_cleanup_cp(drm_device_t * dev)
                if (dev_priv->gart_info.gart_table_location == DRM_ATI_GART_FB)
                {
                        drm_core_ioremapfree(&dev_priv->gart_info.mapping, dev);
-                       dev_priv->gart_info.addr = 0;
+                       dev_priv->gart_info.addr = NULL;
                }
        }
        /* only clear to the start of flags */