Calling close on possible negative integer

[athos-ribeiro]

In https://github.com/giampaolo/psutil/blob/master/psutil/_psutil_posix.c#L390 (and also in line 428), there is a call to close on sock. The issue here is that sock could be set to -1 before this call and then close would set EBADF error.

I am opening this issue to check if this is an actual problem. On a confirmation, i could submit a patch for this.

Thanks.

[giampaolo]

Yep please do. It looks like the variable should be initialized to -1 (since socket() on error returns -1).