drm: don't do the create the node ourselves if we have udev.

this can remove nodes it shouldn't, let udev run the show.

this is needed for reliably GPU switch.

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

diff --git a/xf86drm.c b/xf86drm.c
index 896b9ba..799fcdd 100644 (file)
--- a/xf86drm.c
+++ b/xf86drm.c
@@ -370,6 +370,7 @@ wait_for_udev:
     if (fd >= 0)
        return fd;
 
+#if !defined(UDEV)
     /* Check if the device node is not what we expect it to be, and recreate it
      * and try again if so.
      */
@@ -391,6 +392,7 @@ wait_for_udev:
 
     drmMsg("drmOpenDevice: Open failed\n");
     remove(buf);
+#endif
     return -errno;
 }