This command is meant for ATAPI devices only, prohibit acknowledging it with
a command aborted response when an IDE device is busy.
Signed-off-by: John Snow <jsnow@redhat.com>
Reported-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id:
1453225191-11871-2-git-send-email-jsnow@redhat.com
return;
}
- /* Only DEVICE RESET is allowed while BSY or/and DRQ are set */
- if ((s->status & (BUSY_STAT|DRQ_STAT)) && val != WIN_DEVICE_RESET)
- return;
+ /* Only RESET is allowed while BSY and/or DRQ are set,
+ * and only to ATAPI devices. */
+ if (s->status & (BUSY_STAT|DRQ_STAT)) {
+ if (val != WIN_DEVICE_RESET || s->drive_kind != IDE_CD) {
+ return;
+ }
+ }
if (!ide_cmd_permitted(s, val)) {
ide_abort_command(s);