Patch "net/wan/fsl_ucc_hdlc: fix unitialized variable warnings" has been added to the 4.9-stable tree

Patch "net/wan/fsl_ucc_hdlc: fix unitialized variable warnings" has been added to the 4.9-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    net/wan/fsl_ucc_hdlc: fix unitialized variable warnings

to the 4.9-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     net-wan-fsl_ucc_hdlc-fix-unitialized-variable-warnings.patch
and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From foo@baz Mon Apr  9 17:09:24 CEST 2018
From: Holger Brunck <holger.brunck@keymile.com>
Date: Wed, 17 May 2017 17:24:33 +0200
Subject: net/wan/fsl_ucc_hdlc: fix unitialized variable warnings

From: Holger Brunck <holger.brunck@keymile.com>


[ Upstream commit 66bb144bd9096dd5268ef736ba769b8b6f4ef100 ]

This fixes the following compiler warnings:
drivers/net/wan/fsl_ucc_hdlc.c: In function 'ucc_hdlc_poll':
warning: 'skb' may be used uninitialized in this function
[-Wmaybe-uninitialized]
  skb->mac_header = skb->data - skb->head;

and

drivers/net/wan/fsl_ucc_hdlc.c: In function 'ucc_hdlc_probe':
drivers/net/wan/fsl_ucc_hdlc.c:1127:3: warning: 'utdm' may be used
uninitialized in this function [-Wmaybe-uninitialized]
   kfree(utdm);

Signed-off-by: Holger Brunck <holger.brunck@keymile.com>
Cc: Zhao Qiang <qiang.zhao@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/wan/fsl_ucc_hdlc.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/net/wan/fsl_ucc_hdlc.c
+++ b/drivers/net/wan/fsl_ucc_hdlc.c
@@ -454,7 +454,7 @@ static int hdlc_tx_done(struct ucc_hdlc_
 static int hdlc_rx_done(struct ucc_hdlc_private *priv, int rx_work_limit)
 {
 	struct net_device *dev = priv->ndev;
-	struct sk_buff *skb;
+	struct sk_buff *skb = NULL;
 	hdlc_device *hdlc = dev_to_hdlc(dev);
 	struct qe_bd *bd;
 	u32 bd_status;
@@ -1002,7 +1002,7 @@ static int ucc_hdlc_probe(struct platfor
 	struct device_node *np = pdev->dev.of_node;
 	struct ucc_hdlc_private *uhdlc_priv = NULL;
 	struct ucc_tdm_info *ut_info;
-	struct ucc_tdm *utdm;
+	struct ucc_tdm *utdm = NULL;
 	struct resource res;
 	struct net_device *dev;
 	hdlc_device *hdlc;


Patches currently in stable-queue which might be from holger.brunck@keymile.com are

queue-4.9/net-wan-fsl_ucc_hdlc-fix-incorrect-memory-allocation.patch
queue-4.9/net-wan-fsl_ucc_hdlc-fix-unitialized-variable-warnings.patch
queue-4.9/net-wan-fsl_ucc_hdlc-fix-muram-allocation-error.patch
queue-4.9/fsl-qe-add-bit-description-for-synl-register-for-gumr.patch