usb: dwc3: fix post-increment

Use pre-increment and set -ETIMEDOUT correctly.

Signed-off-by: Janusz Dziedzic <januszx.dziedzic@linux.intel.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>

diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 9262ef2..af9e885 100644 (file)
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -214,7 +214,7 @@ int dwc3_send_gadget_generic_command(struct dwc3 *dwc, unsigned cmd, u32 param)
                                ret = -EINVAL;
                        break;
                }
-       } while (timeout--);
+       } while (--timeout);
 
        if (!timeout) {
                ret = -ETIMEDOUT;