Elinks crash

[Mario Freitas]

Today I noticed elinks crashes most of the times after parsing a web
page which includes framesets (try loading a frameset with for example
rows="200,*"). This occurs because it tries to free some arbitrary block
of memory without checking if the previous functions returned errors.

Below there is a patch for this problem, so I expect you submit it.
Also I'm CCing to ports at freebsd.org so users can overcome this problem
while it is not commited.

Sincerely,
-- 
Mário Freitas (sub_0 at netcabo.pt)
Núcleo Português de FreeBSD (NPF)

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