tehuti: return -EFAULT on copy_to_user errors

copy_to_user() returns the number of bytes remaining but we want to
return a negative error code here.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/tehuti.c b/drivers/net/tehuti.c
index 20ab161..737df60 100644 (file)
--- a/drivers/net/tehuti.c
+++ b/drivers/net/tehuti.c
@@ -646,7 +646,7 @@ static int bdx_ioctl_priv(struct net_device *ndev, struct ifreq *ifr, int cmd)
                error = copy_from_user(data, ifr->ifr_data, sizeof(data));
                if (error) {
                        pr_err("cant copy from user\n");
-                       RET(error);
+                       RET(-EFAULT);
                }
                DBG("%d 0x%x 0x%x\n", data[0], data[1], data[2]);
        }
@@ -665,7 +665,7 @@ static int bdx_ioctl_priv(struct net_device *ndev, struct ifreq *ifr, int cmd)
                    data[2]);
                error = copy_to_user(ifr->ifr_data, data, sizeof(data));
                if (error)
-                       RET(error);
+                       RET(-EFAULT);
                break;
 
        case BDX_OP_WRITE: