clk: sci-clk: fix return value of set_rate

Set rate should return the new clock rate on success, and negative error
value on failure. Fix this, as currently set_rate returns 0 on success.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tero Kristo <kristo@kernel.org>
diff --git a/drivers/clk/ti/clk-sci.c b/drivers/clk/ti/clk-sci.c
index 6f0fdaa..acb9ead 100644
--- a/drivers/clk/ti/clk-sci.c
+++ b/drivers/clk/ti/clk-sci.c
@@ -111,10 +111,12 @@
 #endif
 
 	ret = cops->set_freq(sci, clk->id, clk->data, 0, rate, ULONG_MAX);
-	if (ret)
+	if (ret) {
 		dev_err(clk->dev, "%s: set_freq failed (%d)\n", __func__, ret);
+		return ret;
+	}
 
-	return ret;
+	return rate;
 }
 
 static int ti_sci_clk_set_parent(struct clk *clk, struct clk *parent)