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usb: gadget: udc: core: Warn about failed to find udc 

If we do not warn here, the user may not know failed to
find udc device by a gadget driver with the same name
because it silently fails. Let's print a warning in that
case so developers find these problems faster.

Signed-off-by: Dejin Zheng <zhengdejin5@gmail.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Dejin Zheng 2020-01-04 21:27:40 +08:00 committed by Greg Kroah-Hartman
parent 463f67aec2
commit 1d039a8061
1 changed files with 2 additions and 0 deletions
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2
drivers/usb/gadget/udc/core.c
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@ -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);