[PATCH 12/17] nvme: check for a live controller in nvme_dev_open
From: Christoph Hellwig <hch@lst.de>
Date: 2017-10-18 16:52:53
Also in:
linux-nvme
Subsystem:
nvm express driver, the rest · Maintainers:
Keith Busch, Jens Axboe, Christoph Hellwig, Sagi Grimberg, Linus Torvalds
This is a much more sensible check than just the admin queue. Signed-off-by: Christoph Hellwig <hch@lst.de> --- drivers/nvme/host/core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index 3757f5695de2..d490abd0195c 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c@@ -1891,7 +1891,7 @@ static int nvme_dev_open(struct inode *inode, struct file *file) struct nvme_ctrl *ctrl = container_of(inode->i_cdev, struct nvme_ctrl, cdev); - if (!ctrl->admin_q) + if (ctrl->state != NVME_CTRL_LIVE) return -EWOULDBLOCK; file->private_data = ctrl; return 0;
--
2.14.1