Pull file descriptor fix from Al Viro:
"Fix for breakage in #work.fd this window"
* tag 'pull-work.fd-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
fix the breakage in close_fd_get_file() calling conventions change
init_task_work(&twcb->twork, binder_do_fd_close);
twcb->file = close_fd_get_file(fd);
if (twcb->file) {
+ // pin it until binder_do_fd_close(); see comments there
+ get_file(twcb->file);
filp_close(twcb->file, current->files);
task_work_add(current, &twcb->twork, TWA_RESUME);
} else {
/*
* variant of close_fd that gets a ref on the file for later fput.
- * The caller must ensure that filp_close() called on the file, and then
- * an fput().
+ * The caller must ensure that filp_close() called on the file.
*/
struct file *close_fd_get_file(unsigned int fd)
{
struct files_struct *files = current->files;
struct io_close *close = &req->close;
struct fdtable *fdt;
- struct file *file = NULL;
+ struct file *file;
int ret = -EBADF;
if (req->close.file_slot) {
lockdep_is_held(&files->file_lock));
if (!file || file->f_op == &io_uring_fops) {
spin_unlock(&files->file_lock);
- file = NULL;
goto err;
}
err:
if (ret < 0)
req_set_fail(req);
- if (file)
- fput(file);
__io_req_complete(req, issue_flags, ret, 0);
return 0;
}