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-rw-r--r--src/stdio/ftrylockfile.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/stdio/ftrylockfile.c b/src/stdio/ftrylockfile.c
index 6f9a4b88..eb13c839 100644
--- a/src/stdio/ftrylockfile.c
+++ b/src/stdio/ftrylockfile.c
@@ -34,6 +34,7 @@ int ftrylockfile(FILE *f)
f->lockcount = 1;
f->prev_locked = 0;
f->next_locked = self->stdio_locks;
+ if (f->next_locked) f->next_locked->prev_locked = f;
self->stdio_locks = f;
return 0;
}