temporary_buffer: use posix_memalign() return value
temporary_buffer: use posix_memalign() return value

The proper way to test whether posix_memalign() failed is to check its
return value, not the content of the pointer.

This also silences "ignoring return value of 'posix_memalign()'" diagnostic
messages.

Signed-off-by: Paweł Dziepak <e29bb3265626c60caf76d587cabdfcd8b379ef80@quarnos.org>
Reviewed-by: Raphael S. Carvalho <1e2942cea40e3b4d2162dfcd9e53e41c05a84d22@cloudius-systems.com>
mixja/seastar,gwicke/scylla,avikivity/scylla,linearregression/scylla,koolhazz/seastar,jonathanleang/seastar,avikivity/scylla,raphaelsc/scylla,chunshengster/seastar,acbellini/seastar,dwdm/scylla,wildinto/seastar,glommer/scylla,victorbriz/scylla,scylladb/scylla,jonathanleang/seastar,printedheart/seastar,eklitzke/scylla,kjniemi/scylla,flashbuckets/seastar,jonathanleang/seastar,capturePointer/scylla,shyamalschandra/seastar,dwdm/seastar,scylladb/scylla-seastar,phonkee/scylla,kjniemi/seastar,dreamsxin/seastar,ducthangho/imdb,joerg84/seastar,hongliangzhao/seastar,dreamsxin/seastar,joerg84/seastar,ducthangho/imdb,mixja/seastar,koolhazz/seastar,shyamalschandra/seastar,mixja/seastar,victorbriz/scylla,senseb/scylla,kangkot/scylla,avikivity/scylla,leejir/seastar,senseb/scylla,rluta/scylla,aruanruan/scylla,tempbottle/seastar,joerg84/seastar,raphaelsc/scylla,shaunstanislaus/scylla,anzihenry/seastar,tempbottle/scylla,xtao/seastar,wildinto/scylla,scylladb/scylla-seastar,capturePointer/scylla,shaunstanislaus/scylla,bowlofstew/scylla,kjniemi/scylla,eklitzke/scylla,dwdm/scylla,cloudius-systems/seastar,xtao/seastar,guiquanz/scylla,anzihenry/seastar,xtao/seastar,sjperkins/seastar,sjperkins/seastar,flashbuckets/seastar,asias/scylla,dwdm/scylla,ducthangho/imdb,dreamsxin/seastar,capturePointer/scylla,hongliangzhao/seastar,avikivity/seastar,acbellini/scylla,scylladb/seastar,stamhe/seastar,wildinto/scylla,scylladb/seastar,norcimo5/seastar,kjniemi/seastar,printedheart/seastar,tempbottle/seastar,acbellini/seastar,bowlofstew/seastar,avikivity/seastar,sjperkins/seastar,aruanruan/scylla,gwicke/scylla,scylladb/seastar,cloudius-systems/seastar,anzihenry/seastar,scylladb/scylla,rentongzhang/scylla,linearregression/scylla,syuu1228/seastar,rluta/scylla,acbellini/scylla,acbellini/scylla,shyamalschandra/seastar,rentongzhang/scylla,cloudius-systems/seastar,acbellini/seastar,asias/scylla,chunshengster/seastar,tempbottle/scylla,glommer/scylla,kjniemi/seastar,linearregression/seastar,rluta/scylla,asias/scylla,duarten/scylla,printedheart/seastar,stamhe/scylla,scylladb/scylla,wildinto/seastar,duarten/scylla,aruanruan/scylla,kangkot/scylla,guiquanz/scylla,stamhe/scylla,wildinto/seastar,tempbottle/scylla,syuu1228/seastar,stamhe/seastar,guiquanz/scylla,phonkee/scylla,leejir/seastar,wildinto/scylla,justintung/scylla,stamhe/scylla,bowlofstew/seastar,tempbottle/seastar,victorbriz/scylla,raphaelsc/scylla,koolhazz/seastar,justintung/scylla,dwdm/seastar,glommer/scylla,shaunstanislaus/scylla,bowlofstew/scylla,syuu1228/seastar,kjniemi/scylla,bzero/seastar,norcimo5/seastar,hongliangzhao/seastar,scylladb/scylla,duarten/scylla,stamhe/seastar,rentongzhang/scylla,bowlofstew/scylla,bowlofstew/seastar,avikivity/seastar,linearregression/seastar,respu/scylla,linearregression/scylla,chunshengster/seastar,bzero/seastar,respu/scylla,justintung/scylla,phonkee/scylla,norcimo5/seastar,kangkot/scylla,senseb/scylla,dwdm/seastar,eklitzke/scylla,leejir/seastar,flashbuckets/seastar,gwicke/scylla,linearregression/seastar,respu/scylla,bzero/seastar,scylladb/scylla-seastar