NVMe: replace nvme_ns with nvme_dev for user admin

The function nvme_user_admin_command does not require a namespace to
proceed.  Replace with the nvme_dev structure so that it can be called
from contexts that do not have a namespace.

Signed-off-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>

1 files changed, 2 insertions, 3 deletions

diff --git a/drivers/block/nvme.c b/drivers/block/nvme.c
index 46e33eec6298..89935853cb85 100644
--- a/drivers/block/nvme.c
+++ b/drivers/block/nvme.c
@@ -1151,10 +1151,9 @@ static int nvme_submit_io(struct nvme_ns *ns, struct nvme_user_io __user *uio)
         return status;
 }
 
-static int nvme_user_admin_cmd(struct nvme_ns *ns,
+static int nvme_user_admin_cmd(struct nvme_dev *dev,
                                         struct nvme_admin_cmd __user *ucmd)
 {
-        struct nvme_dev *dev = ns->dev;
         struct nvme_admin_cmd cmd;
         struct nvme_command c;
         int status, length;
@@ -1209,7 +1208,7 @@ static int nvme_ioctl(struct block_device *bdev, fmode_t mode, unsigned int cmd,
         case NVME_IOCTL_ID:
                 return ns->ns_id;
         case NVME_IOCTL_ADMIN_CMD:
-                return nvme_user_admin_cmd(ns, (void __user *)arg);
+                return nvme_user_admin_cmd(ns->dev, (void __user *)arg);
         case NVME_IOCTL_SUBMIT_IO:
                 return nvme_submit_io(ns, (void __user *)arg);
         default: