From: Rich Felker <dalias@aerifal.cx>
Date: Fri, 19 Oct 2012 19:02:37 +0000 (-0400)
Subject: fix usage of locks with vfork
X-Git-Url: http://nsz.repo.hu/git/?p=musl;a=commitdiff_plain;h=599f97360389911c293e0ca4c5eb49e007377fba;hp=599f97360389911c293e0ca4c5eb49e007377fba

fix usage of locks with vfork

__release_ptc() is only valid in the parent; if it's performed in the
child, the lock will be unlocked early then double-unlocked later,
corrupting the lock state.
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