usb: renesas_usbhs: show error reason on usbhsh_urb_enqueu()

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

1 files changed, 11 insertions, 3 deletions

diff --git a/drivers/usb/renesas_usbhs/mod_host.c b/drivers/usb/renesas_usbhs/mod_host.c
index 92dcc7e64630..aa50eaaffcb6 100644
--- a/drivers/usb/renesas_usbhs/mod_host.c
+++ b/drivers/usb/renesas_usbhs/mod_host.c
@@ -949,12 +949,15 @@ static int usbhsh_urb_enqueue(struct usb_hcd *hcd,
 
         if (!usbhsh_is_running(hpriv)) {
                 ret = -EIO;
+                dev_err(dev, "host is not running\n");
                 goto usbhsh_urb_enqueue_error_not_linked;
         }
 
         ret = usb_hcd_link_urb_to_ep(hcd, urb);
-        if (ret)
+        if (ret) {
+                dev_err(dev, "urb link failed\n");
                 goto usbhsh_urb_enqueue_error_not_linked;
+        }
 
         /*
          * attach udev if needed
@@ -964,6 +967,7 @@ static int usbhsh_urb_enqueue(struct usb_hcd *hcd,
                 new_udev = usbhsh_device_attach(hpriv, urb);
                 if (!new_udev) {
                         ret = -EIO;
+                        dev_err(dev, "device attach failed\n");
                         goto usbhsh_urb_enqueue_error_not_linked;
                 }
         }
@@ -974,8 +978,10 @@ static int usbhsh_urb_enqueue(struct usb_hcd *hcd,
          */
         if (!usbhsh_ep_to_uep(ep)) {
                 ret = usbhsh_endpoint_attach(hpriv, urb, mem_flags);
-                if (ret < 0)
+                if (ret < 0) {
+                        dev_err(dev, "endpoint attach failed\n");
                         goto usbhsh_urb_enqueue_error_free_device;
+                }
         }
 
         /*
@@ -989,8 +995,10 @@ static int usbhsh_urb_enqueue(struct usb_hcd *hcd,
                 else
                         break;
         }
-        if (ret < 0)
+        if (ret < 0) {
+                dev_err(dev, "pipe attach failed\n");
                 goto usbhsh_urb_enqueue_error_free_endpoint;
+        }
 
         /*
          * push packet