| Message ID | 20200104132740.29055-1-zhengdejin5@gmail.com (mailing list archive) |
|---|---|
| State | Mainlined |
| Commit | 1d039a80613dd8b8d95e181f918db5004bd5cc48 |
| Headers | show |
| Series | [v2] usb: gadget: udc: core: Warn about failed to find udc | expand |
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);
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> --- V2: fix some mistake in comments. drivers/usb/gadget/udc/core.c | 2 ++ 1 file changed, 2 insertions(+)