Ignore NULL pointers passed to nl_cache_free()
Ignore NULL pointers passed to nl_cache_free()

teto/libnl_old,tklauser/libnl,baloo/libnl,dsahern/libnl,cyclops8456/libnl3,thiz11/platform_external_libnl,Distrotech/libnl,UnicronNL/libnl3,baloo/libnl,claudelee/libnl,thom311/libnl,tklauser/libnl,honsys/libnl,tklauser/libnl,teto/libnl_old,bcopeland/android_libnl,Distrotech/libnl,gxk/libnl,chitranshi/libnl,dsahern/libnl,cfriedt/libnl,Distrotech/libnl,HolyShitMan/libnl-1,dsahern/libnl,geekboxzone/lollipop_external_libnl,tgraf/libnl,houstar/libnl,cfriedt/libnl,UnicronNL/libnl3,claudelee/libnl,karlhiramoto/libnl,dsahern/libnl,HolyShitMan/libnl-1,houstar/libnl,cfriedt/libnl,HolyShitMan/libnl-1,thom311/libnl,CyanogenMod/android_external_libnl,gxk/libnl,tklauser/libnl,karlhiramoto/libnl,Omegaphora/external_libnl,chitranshi/libnl,tgraf/libnl,thom311/libnl,karlhiramoto/libnl,thiz11/platform_external_libnl,congwang/libnl,vyos/libnl3,UnicronNL/libnl3,android-ia/platform_external_libnl,baloo/libnl,android-ia/platform_external_libnl,UnicronNL/libnl3,socketpair/libnl,cyclops8456/libnl3,HolyShitMan/libnl-1,Distrotech/libnl,geekboxzone/lollipop_external_libnl,CyanogenMod/android_external_libnl,socketpair/libnl,cyclops8456/libnl3,houstar/libnl,greearb/libnl-ct,gxk/libnl,mshirley/libnl,cfriedt/libnl,Omegaphora/external_libnl,teto/libnl_old,mshirley/libnl,greearb/libnl-ct,chitranshi/libnl,geekboxzone/mmallow_external_libnl,bcopeland/android_libnl,kolyshkin/libnl,teto/libnl_old,congwang/libnl,baloo/libnl,kolyshkin/libnl,greearb/libnl-ct,xin3liang/platform_external_libnl,xin3liang/platform_external_libnl,socketpair/libnl,mshirley/libnl,vyos/libnl3,mshirley/libnl,vyos/libnl3,claudelee/libnl,honsys/libnl,karlhiramoto/libnl,claudelee/libnl,houstar/libnl,honsys/libnl,tgraf/libnl,congwang/libnl,chitranshi/libnl,kolyshkin/libnl,vyos/libnl3,honsys/libnl,yinquan529/platform-external-libnl,kolyshkin/libnl,geekboxzone/mmallow_external_libnl,congwang/libnl,cyclops8456/libnl3,tgraf/libnl,yinquan529/platform-external-libnl