Fix a potential NULL pointer dereference (pi)
Fix a potential NULL pointer dereference (pi)

BlackFired/sdk,Novo1987/sdk,Sisky/sdk,javiserrano/sdk,Novo1987/sdk,18671178307/sdk,Novo1987/sdk,sergiohs84/sdk,meganz/sdk,jedisct1/sdk,SuperStarPL/sdk,SuperStarPL/sdk,18671178307/sdk,thedebian/sdk,Novo1987/sdk,Sisky/sdk,BiuroCo/mega,sergiohs84/sdk,Acidburn0zzz/sdk,Acidburn0zzz/sdk,Sisky/sdk,Acidburn0zzz/sdk,jedisct1/sdk,BlackFired/sdk,thedebian/sdk,PatrickJBaird/sdk,18671178307/sdk,18671178307/sdk,Alexx99/sdk,javiserrano/sdk,jedisct1/sdk,meganz/sdk,PatrickJBaird/sdk,BlackFired/sdk,thedebian/sdk,BlackFired/sdk,Novo1987/sdk,18671178307/sdk,Sisky/sdk,javiserrano/sdk,BlackFired/sdk,sergiohs84/sdk,Sisky/sdk,BiuroCo/mega,jedisct1/sdk,Alexx99/sdk,BiuroCo/mega,BlackFired/sdk,javiserrano/sdk,sergiohs84/sdk,meganz/sdk,Acidburn0zzz/sdk,SuperStarPL/sdk,sergiohs84/sdk,SuperStarPL/sdk,Acidburn0zzz/sdk,Acidburn0zzz/sdk,jedisct1/sdk,SuperStarPL/sdk,PatrickJBaird/sdk,BiuroCo/mega,Alexx99/sdk,Alexx99/sdk,18671178307/sdk,SuperStarPL/sdk,thedebian/sdk,thedebian/sdk,Novo1987/sdk,sergiohs84/sdk,thedebian/sdk,18671178307/sdk,javiserrano/sdk,meganz/sdk,jedisct1/sdk,sergiohs84/sdk,javiserrano/sdk,sergiohs84/sdk,Alexx99/sdk,meganz/sdk,18671178307/sdk,BiuroCo/mega,Alexx99/sdk,Acidburn0zzz/sdk,PatrickJBaird/sdk,Novo1987/sdk,Novo1987/sdk,meganz/sdk,Acidburn0zzz/sdk,Sisky/sdk,BiuroCo/mega,PatrickJBaird/sdk,jedisct1/sdk,PatrickJBaird/sdk,jedisct1/sdk,meganz/sdk