coverity: null check after dereference
coverity: null check after dereference

we actually meant to check *p not p.

Signed-off-by: Serge Hallyn <3df611b026e4639bee8aef7a4beb2e39fcebb313@ubuntu.com>

regit/lxc,Ponce/lxc,terceiro/lxc,regit/lxc,thmo/lxc,armcc/lxc,caglar10ur/lxc,tych0/lxc,yubo/lxc,fwilson42/lxc,bostjan/lxc,federicobriata/lxc,caglar10ur/lxc,tych0/lxc,tych0/lxc,hkjolhede/lxc,akshaykarle/lxc,yubo/lxc,yubo/lxc,LynxChaus/lxc,thmo/lxc,ecarrara/lxc,hkjolhede/lxc,akshaykarle/lxc,jirislaby/lxc,jirislaby/lxc,ioops/lxc,JohnPeacockMessageSystems/lxc,Distrotech/lxc,aeris/lxc,ysbnim/lxc,szaszg/lxc,Pelagicore/lxc,hkjolhede/lxc,codebauss/lxc,lisongmin/lxc,raspberrypython/lxc,efiop/lxc,Distrotech/lxc,armcc/lxc,ysbnim/lxc,GreatFruitOmsk/lxc,bostjan/lxc,rldleblanc/lxc,hallyn/lxc,bmoar/lxc,cjwatson/lxc,aeris/lxc,caglar10ur/lxc,major/lxc,regit/lxc,DarknessBeforeDawn/lxc,federicobriata/lxc,LynxChaus/lxc,LynxChaus/lxc,QingweiPeterLan/cs188-lxc,akshaykarle/lxc,ss1h2a3tw/lxc,DarknessBeforeDawn/lxc,GreatFruitOmsk/lxc,christiaan/lxc,virajs/lxc,GreatFruitOmsk/lxc,bostjan/lxc,QingweiPeterLan/cs188-lxc,lazy404/lxc,lisongmin/lxc,virajs/lxc,major/lxc,Ponce/lxc,ysbnim/lxc,fwilson42/lxc,armcc/lxc,cjwatson/lxc,fwilson42/lxc,JohnPeacockMessageSystems/lxc,Ponce/lxc,ecarrara/lxc,ksperis/lxc,efiop/lxc,hallyn/lxc,szaszg/lxc,ecarrara/lxc,lazy404/lxc,rowhit/lxc,weizhenwei/lxc,hfuCN/lxc,rowhit/lxc,ioops/lxc,raspberrypython/lxc,jirislaby/lxc,Distrotech/lxc,efiop/lxc,hfuCN/lxc,hallyn/lxc,thmo/lxc,weizhenwei/lxc,Pelagicore/lxc,Pelagicore/lxc,cjwatson/lxc,bmoar/lxc,rldleblanc/lxc,christiaan/lxc,lisongmin/lxc,codebauss/lxc,ksperis/lxc,rowhit/lxc,szaszg/lxc,rldleblanc/lxc,QingweiPeterLan/cs188-lxc,bmoar/lxc,DarknessBeforeDawn/lxc,major/lxc,lazy404/lxc,virajs/lxc,aeris/lxc,sapun/lxc,sapun/lxc,codebauss/lxc,ksperis/lxc,ss1h2a3tw/lxc,christiaan/lxc,sapun/lxc,hfuCN/lxc,terceiro/lxc,JohnPeacockMessageSystems/lxc,federicobriata/lxc,terceiro/lxc,raspberrypython/lxc,ioops/lxc,ss1h2a3tw/lxc,weizhenwei/lxc