Messages in this thread Patch in this message | | | From | Daniel Wagner <> | Subject | [PATCH v2] nvme-multipath: Early exit if no path is available | Date | Wed, 27 Jan 2021 11:30:33 +0100 |
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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: 75c10e732724 ("nvme-multipath: round-robin I/O policy") Cc: Hannes Reinecke <hare@suse.de> Signed-off-by: Daniel Wagner <dwagner@suse.de> --- v2: - moved NULL test into the if conditional statement - added Fixes tag
drivers/nvme/host/multipath.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/nvme/host/multipath.c b/drivers/nvme/host/multipath.c index 9ac762b28811..282b7a4ea9a9 100644 --- a/drivers/nvme/host/multipath.c +++ b/drivers/nvme/host/multipath.c @@ -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; -- 2.29.2
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