usb: dwc3: fix a test for error in dwc3_core_init()

This was refactored recently and the "ret = " was accidentally deleted
so the errors aren't checked.

Fixes: 1d72fab ("USB: dwc3: refactor phy handling")
Signed-off-by: Dan Carpenter <[email protected]>
Reviewed-by: Johan Hovold <[email protected]>
Acked-by: Thinh Nguyen <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>

Author: Dan Carpenter

drivers/usb/dwc3/core.c

@@ -1137,7 +1137,7 @@ static int dwc3_core_init(struct dwc3 *dwc)
 
 	dwc3_set_incr_burst_type(dwc);
 
-	dwc3_phy_power_on(dwc);
+	ret = dwc3_phy_power_on(dwc);
 	if (ret)
 		goto err_exit_phy;