staging: drm/imx: replace IS_ERR and PTR_ERR with PTR_ERR_OR_ZERO

---
 drivers/staging/imx-drm/imx-ldb.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)
 
diff --git a/drivers/staging/imx-drm/imx-ldb.c b/drivers/staging/imx-drm/imx-ldb.c
index 926f493..654bf03 100644
--- a/drivers/staging/imx-drm/imx-ldb.c
+++ b/drivers/staging/imx-drm/imx-ldb.c
@@ -359,10 +359,8 @@ static int imx_ldb_get_clk(struct imx_ldb *ldb, int chno)
 
 	sprintf(clkname, "di%d_pll", chno);
 	ldb->clk_pll[chno] = devm_clk_get(ldb->dev, clkname);
-	if (IS_ERR(ldb->clk_pll[chno]))
-		return PTR_ERR(ldb->clk_pll[chno]);
 
-	return 0;
+	return PTR_ERR_OR_ZERO(ldb->clk_pll[chno]);
 }
 
 static int imx_ldb_register(struct imx_ldb_channel *imx_ldb_ch)