netdev - [PATCH net-next 8/8] s390/lcs: Fix null-pointer access in msg

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Message-Id: <1431952079-6847-9-git-send-email-ubraun@linux.vnet.ibm.com>
Date:	Mon, 18 May 2015 14:27:59 +0200
From:	Ursula Braun <ubraun@...ux.vnet.ibm.com>
To:	davem@...emloft.net
Cc:	netdev@...r.kernel.org, linux-s390@...r.kernel.org,
	ursula.braun@...ibm.com, ubraun@...ux.vnet.ibm.com,
	Peter Oberparleiter <oberpar@...ux.vnet.ibm.com>
Subject: [PATCH net-next 8/8] s390/lcs: Fix null-pointer access in msg

From: Peter Oberparleiter <oberpar@...ux.vnet.ibm.com> 

An attempt to configure a CTC device as LCS results in the
following error message:

  (null): Detecting a network adapter for LCS devices failed
          with rc=-5 (0xfffffffb)

"(null)" results from access to &card->dev->dev in lcs_new_device()
which is only initialized later in the function. Fix this by using
&ccwgdev->dev instead which is initialized before lcs_new_device()
is called.

Signed-off-by: Peter Oberparleiter <oberpar@...ux.vnet.ibm.com>
Signed-off-by: Ursula Braun <ursula.braun@...ibm.com>
---
 drivers/s390/net/lcs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/s390/net/lcs.c b/drivers/s390/net/lcs.c
index 00b7d9c..2f5b518 100644
--- a/drivers/s390/net/lcs.c
+++ b/drivers/s390/net/lcs.c
@@ -2150,7 +2150,7 @@ lcs_new_device(struct ccwgroup_device *ccwgdev)
 	rc = lcs_detect(card);
 	if (rc) {
 		LCS_DBF_TEXT(2, setup, "dtctfail");
-		dev_err(&card->dev->dev,
+		dev_err(&ccwgdev->dev,
 			"Detecting a network adapter for LCS devices"
 			" failed with rc=%d (0x%x)\n", rc, rc);
 		lcs_stopcard(card);
-- 
2.3.7

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