This bug was introduced in
94d3f98a3f3caddd7875f9a11776daeb84962a7b:
scsi_cancel_io was checking if some request was pending before trying
to cancel it, while scsi_req_cancel always cancels the request.
This may lead to a crash of Qemu due to dereferencing a NULL pointer,
as exhibited by NetBSD 5.1 installer on MIPS Magnum emulation.
Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
s->ti_rptr = 0;
s->ti_wptr = 0;
- if (s->current_dev) {
+ if (s->current_req) {
/* Started a new command before the old one finished. Cancel it. */
scsi_req_cancel(s->current_req);
s->async_len = 0;