diff options
| author | Dejin Zheng <zhengdejin5@gmail.com> | 2020-01-04 21:27:40 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-01-15 10:39:21 +0100 |
| commit | 1d039a80613dd8b8d95e181f918db5004bd5cc48 (patch) | |
| tree | 92bd5cdc9272f8cd9ea16ca98608a82b8cb1c882 /drivers/usb/gadget/udc/core.c | |
| parent | 463f67aec2837f981b0a0ce8617721ff59685c00 (diff) | |
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>
Diffstat (limited to 'drivers/usb/gadget/udc/core.c')
| -rw-r--r-- | drivers/usb/gadget/udc/core.c | 2 |
1 files changed, 2 insertions, 0 deletions
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); |