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correct locking in stdio functions that tried to be lock-free
[musl]
/
src
/
stdio
/
fclose.c
diff --git
a/src/stdio/fclose.c
b/src/stdio/fclose.c
index
8fdc3f7
..
92bf7ff
100644
(file)
--- a/
src/stdio/fclose.c
+++ b/
src/stdio/fclose.c
@@
-3,9
+3,12
@@
int fclose(FILE *f)
{
int r;
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;
OFLLOCK();
if (f->prev) f->prev->next = f->next;
if (f->next) f->next->prev = f->prev;