treewide: Remove clk_free

This function is a no-op. Remove it.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Link: https://lore.kernel.org/r/20231216193843.2463779-3-seanga2@gmail.com
diff --git a/drivers/usb/host/ehci-atmel.c b/drivers/usb/host/ehci-atmel.c
index fba3595..c6d50fd 100644
--- a/drivers/usb/host/ehci-atmel.c
+++ b/drivers/usb/host/ehci-atmel.c
@@ -70,13 +70,7 @@
 	if (ret)
 		return -EINVAL;
 
-	ret = clk_enable(&clk);
-	if (ret)
-		return ret;
-
-	clk_free(&clk);
-
-	return 0;
+	return clk_enable(&clk);
 }
 
 static int ehci_atmel_probe(struct udevice *dev)
diff --git a/drivers/usb/host/ohci-da8xx.c b/drivers/usb/host/ohci-da8xx.c
index 33c4a91..d3d73d2 100644
--- a/drivers/usb/host/ohci-da8xx.c
+++ b/drivers/usb/host/ohci-da8xx.c
@@ -115,7 +115,6 @@
 			err = clk_enable(&priv->clocks[i]);
 			if (err) {
 				dev_err(dev, "failed to enable clock %d\n", i);
-				clk_free(&priv->clocks[i]);
 				goto clk_err;
 			}
 			priv->clock_count++;
diff --git a/drivers/usb/host/xhci-rcar.c b/drivers/usb/host/xhci-rcar.c
index 5fc7afb..fedcf78 100644
--- a/drivers/usb/host/xhci-rcar.c
+++ b/drivers/usb/host/xhci-rcar.c
@@ -90,7 +90,7 @@
 	ret = clk_enable(&plat->clk);
 	if (ret) {
 		dev_err(dev, "Failed to enable USB3 clock\n");
-		goto err_clk;
+		return ret;
 	}
 
 	ctx->hcd = (struct xhci_hccr *)plat->hcd_base;
@@ -114,8 +114,6 @@
 
 err_fw:
 	clk_disable(&plat->clk);
-err_clk:
-	clk_free(&plat->clk);
 	return ret;
 }
 
@@ -127,7 +125,6 @@
 	ret = xhci_deregister(dev);
 
 	clk_disable(&plat->clk);
-	clk_free(&plat->clk);
 
 	return ret;
 }