Commit d1bcf006 authored by Daniel Wagner's avatar Daniel Wagner Committed by Christoph Hellwig
Browse files

nvme-multipath: Early exit if no path is available 



nvme_round_robin_path() should test if the return ns pointer is valid.
nvme_next_ns() will return a NULL pointer if there is no path left.

Fixes: 75c10e73 ("nvme-multipath: round-robin I/O policy")
Signed-off-by: default avatarDaniel Wagner <dwagner@suse.de>
Reviewed-by: default avatarHannes Reinecke <hare@suse.de>
Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
parent 89919929

drivers/nvme/host/multipath.c

+1 −1
Original line number Diff line number Diff line
@@ -221,7 +221,7 @@ static struct nvme_ns *nvme_round_robin_path(struct nvme_ns_head *head, 
	}



	for (ns = nvme_next_ns(head, old);

	     ns != old;

	     ns && ns != old;

	     ns = nvme_next_ns(head, ns)) {

		if (nvme_path_is_disabled(ns))

			continue;