In iscsi_free_task, NULL is assigned to task->sc twice: before and after kfifo_in invocatoin. Allocating and freeing iscsi_task are guarded with session->lock, so multiple NULL assignments cause no trouble. But people reading the source code may be confused.
The second NULL assignment comes from commit: 3e5c28ad0391389959ccae81c938c7533efb3490 It seems that the line after kfifo_in invocation was introduced accidentally. Signed-off-by: Masatake YAMATO <yam...@redhat.com> Reviewed-by: Mike Christie <micha...@cs.wisc.edu> --- drivers/scsi/libiscsi.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c index 82c3fd4..7aacf3a 100644 --- a/drivers/scsi/libiscsi.c +++ b/drivers/scsi/libiscsi.c @@ -507,7 +507,6 @@ static void iscsi_free_task(struct iscsi_task *task) kfifo_in(&session->cmdpool.queue, (void*)&task, sizeof(void*)); if (sc) { - task->sc = NULL; /* SCSI eh reuses commands to verify us */ sc->SCp.ptr = NULL; /* -- 1.7.11.7 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/