usb: dwc2: remove early return on clock query

Since we have assigned clk=NULL, which is a valid clk, we should not
be returning when a clock node is not provide. Instead, we should return
only when we cannot enable the clock.

Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

1 files changed, 7 insertions, 3 deletions

diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c
index 05b05221d677..407f55cf83aa 100644
--- a/drivers/usb/dwc2/gadget.c
+++ b/drivers/usb/dwc2/gadget.c
@@ -3451,8 +3451,7 @@ int dwc2_gadget_init(struct dwc2_hsotg *hsotg, int irq)
         hsotg->clk = devm_clk_get(dev, "otg");
         if (IS_ERR(hsotg->clk)) {
                 hsotg->clk = NULL;
-                dev_err(dev, "cannot get otg clock\n");
-                return PTR_ERR(hsotg->clk);
+                dev_dbg(dev, "cannot get otg clock\n");
         }
 
         hsotg->gadget.max_speed = USB_SPEED_HIGH;
@@ -3461,7 +3460,12 @@ int dwc2_gadget_init(struct dwc2_hsotg *hsotg, int irq)
 
         /* reset the system */
 
-        clk_prepare_enable(hsotg->clk);
+        ret = clk_prepare_enable(hsotg->clk);
+        if (ret) {
+                dev_err(dev, "failed to enable otg clk\n");
+                goto err_clk;
+        }
+
 
         /* regulators */