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authorKeith Busch2017-11-16 13:36:50 -0700
committerChristoph Hellwig2017-11-20 08:38:11 +0100
commit9941a862cc92e448df95709ff40a618964b25e33 (patch)
treef824393e52adfe70be582725402e374aa2ecac1c /drivers/nvme
parentb0d61d586f09fd814a45a5d778fe0d6123f67c2a (diff)
nvme: Suppress static analyis warning
The ns->head is always valid, so we don't need to check for NULL. Reported-by: Dan Carpenter <dan.caprenter@oracle.com> Signed-off-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers/nvme')
-rw-r--r--drivers/nvme/host/core.c7
1 files changed, 2 insertions, 5 deletions
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index a2ab4e440bea..f837d666cbd4 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -2961,8 +2961,6 @@ static void nvme_alloc_ns(struct nvme_ctrl *ctrl, unsigned nsid)
static void nvme_ns_remove(struct nvme_ns *ns)
{
- struct nvme_ns_head *head = ns->head;
-
if (test_and_set_bit(NVME_NS_REMOVING, &ns->flags))
return;
@@ -2980,15 +2978,14 @@ static void nvme_ns_remove(struct nvme_ns *ns)
mutex_lock(&ns->ctrl->subsys->lock);
nvme_mpath_clear_current_path(ns);
- if (head)
- list_del_rcu(&ns->siblings);
+ list_del_rcu(&ns->siblings);
mutex_unlock(&ns->ctrl->subsys->lock);
mutex_lock(&ns->ctrl->namespaces_mutex);
list_del_init(&ns->list);
mutex_unlock(&ns->ctrl->namespaces_mutex);
- synchronize_srcu(&head->srcu);
+ synchronize_srcu(&ns->head->srcu);
nvme_put_ns(ns);
}