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Diffstat (limited to 'drivers/net/ibm_newemac/zmii.c')
-rw-r--r--drivers/net/ibm_newemac/zmii.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/net/ibm_newemac/zmii.c b/drivers/net/ibm_newemac/zmii.c
index 2219ec2740e..2ea472aeab0 100644
--- a/drivers/net/ibm_newemac/zmii.c
+++ b/drivers/net/ibm_newemac/zmii.c
@@ -3,6 +3,11 @@
*
* Driver for PowerPC 4xx on-chip ethernet controller, ZMII bridge support.
*
+ * Copyright 2007 Benjamin Herrenschmidt, IBM Corp.
+ * <benh@kernel.crashing.org>
+ *
+ * Based on the arch/ppc version of the driver:
+ *
* Copyright (c) 2004, 2005 Zultys Technologies.
* Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net>
*
@@ -83,12 +88,14 @@ int __devinit zmii_attach(struct of_device *ofdev, int input, int *mode)
ZMII_DBG(dev, "init(%d, %d)" NL, input, *mode);
- if (!zmii_valid_mode(*mode))
+ if (!zmii_valid_mode(*mode)) {
/* Probably an EMAC connected to RGMII,
* but it still may need ZMII for MDIO so
* we don't fail here.
*/
+ dev->users++;
return 0;
+ }
mutex_lock(&dev->lock);