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nvme: check return value of init_srcu_struct function 

Also add error flow in case srcu initialization function fails.

Signed-off-by: Max Gurtovoy <maxg@mellanox.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Max Gurtovoy 2018-04-12 09:16:12 -06:00 committed by Jens Axboe
parent 543c09c89f
commit fd92c77f58
1 changed files with 4 additions and 1 deletions
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5
drivers/nvme/host/core.c
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@ -2832,7 +2832,9 @@ static struct nvme_ns_head *nvme_alloc_ns_head(struct nvme_ctrl *ctrl,
goto out_free_head;
head->instance = ret;
INIT_LIST_HEAD(&head->list);
init_srcu_struct(&head->srcu);
ret = init_srcu_struct(&head->srcu);
if (ret)
goto out_ida_remove;
head->subsys = ctrl->subsys;
head->ns_id = nsid;
kref_init(&head->ref);
@ -2854,6 +2856,7 @@ static struct nvme_ns_head *nvme_alloc_ns_head(struct nvme_ctrl *ctrl,
return head;
out_cleanup_srcu:
cleanup_srcu_struct(&head->srcu);
out_ida_remove:
ida_simple_remove(&ctrl->subsys->ns_ida, head->instance);
out_free_head:
kfree(head);