drm: zte: checking for NULL instead of IS_ERR()

drm_dev_alloc() never returns NULL, it only returns error pointers on
error.

Fixes: 0a886f59528a ("drm: zte: add initial vou drm driver")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20161115095301.GC15424@mwanda

diff --git a/drivers/gpu/drm/zte/zx_drm_drv.c b/drivers/gpu/drm/zte/zx_drm_drv.c
index abc8099..3e76f72 100644 (file)
--- a/drivers/gpu/drm/zte/zx_drm_drv.c
+++ b/drivers/gpu/drm/zte/zx_drm_drv.c
@@ -107,8 +107,8 @@ static int zx_drm_bind(struct device *dev)
                return -ENOMEM;
 
        drm = drm_dev_alloc(&zx_drm_driver, dev);
-       if (!drm)
-               return -ENOMEM;
+       if (IS_ERR(drm))
+               return PTR_ERR(drm);
 
        drm->dev_private = priv;
        dev_set_drvdata(dev, drm);