smsc75xx: add more information to register io failure warnings

Signed-off-by: Stephane Fillod <fillods@users.sf.net>
Signed-off-by: Steve Glendinning <steve.glendinning@shawell.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/usb/smsc75xx.c b/drivers/net/usb/smsc75xx.c
index f97207a..1de7785 100644 (file)
--- a/drivers/net/usb/smsc75xx.c
+++ b/drivers/net/usb/smsc75xx.c
@@ -98,7 +98,7 @@ static int __must_check smsc75xx_read_reg(struct usbnet *dev, u32 index,
 
        if (unlikely(ret < 0))
                netdev_warn(dev->net,
-                       "Failed to read register index 0x%08x", index);
+                       "Failed to read reg index 0x%08x: %d", index, ret);
 
        le32_to_cpus(buf);
        *data = *buf;
@@ -128,7 +128,7 @@ static int __must_check smsc75xx_write_reg(struct usbnet *dev, u32 index,
 
        if (unlikely(ret < 0))
                netdev_warn(dev->net,
-                       "Failed to write register index 0x%08x", index);
+                       "Failed to write reg index 0x%08x: %d", index, ret);
 
        kfree(buf);