If we do not warn here, the user may not know failed to
find udc class driver because it silently fails.
Let's print a warning in that case so developers find
these problems faster.
Signed-off-by: Dejin Zheng <zhengdejin5@xxxxxxxxx>
---
drivers/usb/gadget/udc/core.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/usb/gadget/udc/core.c b/drivers/usb/gadget/udc/core.c
index 51fa614b4079..9b11046480fe 100644
--- a/drivers/usb/gadget/udc/core.c
+++ b/drivers/usb/gadget/udc/core.c
@@ -1414,6 +1414,8 @@ int usb_gadget_probe_driver(struct usb_gadget_driver *driver)
}
mutex_unlock(&udc_lock);
+ if (ret)
+ pr_warn("udc-core: couldn't find an available UDC or it's busy\n");
return ret;
found:
ret = udc_bind_to_driver(udc, driver);
--
2.17.1
