diff options
| author | Daniel Wagner | 2021-01-27 11:30:33 +0100 |
|---|---|---|
| committer | Christoph Hellwig | 2021-01-28 19:25:07 +0100 |
| commit | d1bcf006a9d3d63c1bcb65a993cb13756954cd9c (patch) | |
| tree | 2a16a1d011dad5477ca27106d5cb2b3665ff26f2 /drivers | |
| parent | 899199292b14b7c735808a37517de4dd2160c300 (diff) | |
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: 75c10e732724 ("nvme-multipath: round-robin I/O policy")
Signed-off-by: Daniel Wagner <dwagner@suse.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/nvme/host/multipath.c | 2 |
1 files changed, 1 insertions, 1 deletions
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; |