drm: fix warning on 64-bit platforms..

This looks ugly, but it is the only thing that makes sense that doesn't
change the API.

Signed-off-by: Dave Airlie <airlied@linux.ie>

diff --git a/drivers/char/drm/drm_bufs.c b/drivers/char/drm/drm_bufs.c
index 58e513a44740f1a8d63ba62356cd7a6ccfbdaed1..319bdea8de8a63c7db21caa72ac1481e3f1330bb 100644 (file)
--- a/drivers/char/drm/drm_bufs.c
+++ b/drivers/char/drm/drm_bufs.c
@@ -309,7 +309,9 @@ int drm_addmap_ioctl(struct inode *inode, struct file *filp,
 
        if (copy_to_user(argp, maplist->map, sizeof(drm_map_t)))
                return -EFAULT;
-       if (put_user((void *)maplist->user_token, &argp->handle))
+
+       /* avoid a warning on 64-bit, this casting isn't very nice, but the API is set so too late */
+       if (put_user((void *)(unsigned long)maplist->user_token, &argp->handle))
                return -EFAULT;
        return 0;
 }