From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: Felipe Balbi <balbi@kernel.org>,
Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Subject: [PATCH v1 2/2] usb: gadget: udc: core: Print error code in usb_gadget_probe_driver()
Date: Mon, 4 Oct 2021 17:41:26 +0300 [thread overview]
Message-ID: <20211004144126.49154-2-andriy.shevchenko@linux.intel.com> (raw)
In-Reply-To: <20211004144126.49154-1-andriy.shevchenko@linux.intel.com>
When the UDC is not found, print also the error code for easier debugging.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
drivers/usb/gadget/udc/core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/usb/gadget/udc/core.c b/drivers/usb/gadget/udc/core.c
index f66ac6f8011e..d6265118647b 100644
--- a/drivers/usb/gadget/udc/core.c
+++ b/drivers/usb/gadget/udc/core.c
@@ -1564,7 +1564,7 @@ int usb_gadget_probe_driver(struct usb_gadget_driver *driver)
mutex_unlock(&udc_lock);
if (ret)
- pr_warn("couldn't find an available UDC or it's busy\n");
+ pr_warn("couldn't find an available UDC or it's busy: %d\n", ret);
return ret;
found:
ret = udc_bind_to_driver(udc, driver);
--
2.33.0
prev parent reply other threads:[~2021-10-04 14:41 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-04 14:41 [PATCH v1 1/2] usb: gadget: udc: core: Use pr_fmt() to prefix messages Andy Shevchenko
2021-10-04 14:41 ` Andy Shevchenko [this message]
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