usb: gadget: r8a66597-udc: use devm_clk_get() to get clock

Change to using the devm_clk_get() to get the clock and
have it automatically freed on exit.

Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Signed-off-by: Felipe Balbi <balbi@ti.com>

diff --git a/drivers/usb/gadget/r8a66597-udc.c b/drivers/usb/gadget/r8a66597-udc.c
index 9ebe2c0..51eaedd 100644 (file)
--- a/drivers/usb/gadget/r8a66597-udc.c
+++ b/drivers/usb/gadget/r8a66597-udc.c
@@ -1831,7 +1831,6 @@ static int __exit r8a66597_remove(struct platform_device *pdev)
 
        if (r8a66597->pdata->on_chip) {
                clk_disable_unprepare(r8a66597->clk);
-               clk_put(r8a66597->clk);
        }
 
        return 0;
@@ -1903,11 +1902,10 @@ static int __init r8a66597_probe(struct platform_device *pdev)
 
        if (r8a66597->pdata->on_chip) {
                snprintf(clk_name, sizeof(clk_name), "usb%d", pdev->id);
-               r8a66597->clk = clk_get(dev, clk_name);
+               r8a66597->clk = devm_clk_get(dev, clk_name);
                if (IS_ERR(r8a66597->clk)) {
                        dev_err(dev, "cannot get clock \"%s\"\n", clk_name);
-                       ret = PTR_ERR(r8a66597->clk);
-                       goto clean_up;
+                       return PTR_ERR(r8a66597->clk);
                }
                clk_prepare_enable(r8a66597->clk);
        }
@@ -1973,10 +1971,8 @@ err_add_udc:
 clean_up3:
        free_irq(irq, r8a66597);
 clean_up2:
-       if (r8a66597->pdata->on_chip) {
+       if (r8a66597->pdata->on_chip)
                clk_disable_unprepare(r8a66597->clk);
-               clk_put(r8a66597->clk);
-       }
 clean_up:
        if (r8a66597->ep0_req)
                r8a66597_free_request(&r8a66597->ep[0].ep, r8a66597->ep0_req);