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wan/fsl_ucc_hdlc: avoid possible NULL pointer dereference 

All assignments to components of priv should only
occur after the check if prif is NULL.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
xypron.glpk@gmx.de 2016-07-31 13:14:23 +02:00 committed by David S. Miller
parent 4fb482f737
commit 8c57a3a7fa
1 changed files with 2 additions and 1 deletions
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3
drivers/net/wan/fsl_ucc_hdlc.c
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@ -862,7 +862,7 @@ static int uhdlc_suspend(struct device *dev)
static int uhdlc_resume(struct device *dev)
{
struct ucc_hdlc_private *priv = dev_get_drvdata(dev);
struct ucc_tdm *utdm = priv->utdm;
struct ucc_tdm *utdm;
struct ucc_tdm_info *ut_info;
struct ucc_fast __iomem *uf_regs;
struct ucc_fast_private *uccf;
@ -877,6 +877,7 @@ static int uhdlc_resume(struct device *dev)
if (!netif_running(priv->ndev))
return 0;
utdm = priv->utdm;
ut_info = priv->ut_info;
uf_info = &ut_info->uf_info;
uf_regs = priv->uf_regs;