spi: dw: Don't check clk_free

This function always succeeds, so don't check its return value.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Link: https://lore.kernel.org/r/20220115222504.617013-7-seanga2@gmail.com
diff --git a/drivers/spi/designware_spi.c b/drivers/spi/designware_spi.c
index 47bea0b..1c7d0ca 100644
--- a/drivers/spi/designware_spi.c
+++ b/drivers/spi/designware_spi.c
@@ -732,7 +732,7 @@
 	if (ret)
 		return ret;
 
-	ret = clk_free(&priv->clk);
+	clk_free(&priv->clk);
 	if (ret)
 		return ret;
 #endif