int fclose(FILE *f)
{
int r;
- int perm = f->flags & F_PERM;
+ int perm;
+
+ /* This lock is not paired with any unlock. */
+ FLOCK(f);
- if (!perm) {
+ if (!(perm = f->flags & F_PERM)) {
OFLLOCK();
if (f->prev) f->prev->next = f->next;
if (f->next) f->next->prev = f->prev;