mmc: dw_mmc: remove the unnecessary IS_ERR() checking for ciu/biu clock

If ciu/biu clock are NULL, clk_disable_unprepare should be just returned. In clk_disable_unprepare(), already checked whether clk is error or NULL. Signed-off-by: Jaehoon Chung <[email protected]> Reviewed-by: Shawn Lin <[email protected]> Signed-off-by: Ulf Hansson <[email protected]>
chewitt · Sep 26, 2016 · 7037f3b · 7037f3b
1 parent 00f400b
commit 7037f3b
Showing 1 changed file with 4 additions and 9 deletions.
diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
@@ -3151,12 +3151,10 @@ int dw_mci_probe(struct dw_mci *host)
 		host->dma_ops->exit(host);
 
 err_clk_ciu:
-	if (!IS_ERR(host->ciu_clk))
-		clk_disable_unprepare(host->ciu_clk);
+	clk_disable_unprepare(host->ciu_clk);
 
 err_clk_biu:
-	if (!IS_ERR(host->biu_clk))
-		clk_disable_unprepare(host->biu_clk);
+	clk_disable_unprepare(host->biu_clk);
 
 	return ret;
 }
@@ -3182,11 +3180,8 @@ void dw_mci_remove(struct dw_mci *host)
 	if (host->use_dma && host->dma_ops->exit)
 		host->dma_ops->exit(host);
 
-	if (!IS_ERR(host->ciu_clk))
-		clk_disable_unprepare(host->ciu_clk);
-
-	if (!IS_ERR(host->biu_clk))
-		clk_disable_unprepare(host->biu_clk);
+	clk_disable_unprepare(host->ciu_clk);
+	clk_disable_unprepare(host->biu_clk);
 }
 EXPORT_SYMBOL(dw_mci_remove);