From: Julia Lawall <ju...@diku.dk> If the NULL test is necessary, then the dereference should be moved below the NULL test.
The semantic patch that makes this change is as follows: (http://www.emn.fr/x-info/coccinelle/). The result has been modified to move the initialization of driver down closer to where it is used. // <smpl> @@ type T; expression E; identifier i,fld; statement S; @@ - T i = E->fld; + T i; ... when != E when != i if (E == NULL) S + i = E->fld; // </smpl> Signed-off-by: Julia Lawall <ju...@diku.dk> --- drivers/gpu/drm/drm_drv.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c index 0b9f316..4bdfc98 100644 --- a/drivers/gpu/drm/drm_drv.c +++ b/drivers/gpu/drm/drm_drv.c @@ -297,7 +297,7 @@ EXPORT_SYMBOL(drm_init); */ static void drm_cleanup(struct drm_device * dev) { - struct drm_driver *driver = dev->driver; + struct drm_driver *driver; DRM_DEBUG("\n"); @@ -324,8 +324,9 @@ static void drm_cleanup(struct drm_device * dev) dev->agp = NULL; } - if (dev->driver->unload) - dev->driver->unload(dev); + driver = dev->driver; + if (driver->unload) + driver->unload(dev); drm_ht_remove(&dev->map_hash); drm_ctxbitmap_cleanup(dev); ------------------------------------------------------------------------------ -- _______________________________________________ Dri-devel mailing list Dri-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dri-devel
