diff options
Diffstat (limited to 'drivers/nvdimm/nd_virtio.c')
| -rw-r--r-- | drivers/nvdimm/nd_virtio.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/nvdimm/nd_virtio.c b/drivers/nvdimm/nd_virtio.c index 35c8fbbba10e..f55d60922b87 100644 --- a/drivers/nvdimm/nd_virtio.c +++ b/drivers/nvdimm/nd_virtio.c @@ -44,6 +44,15 @@ static int virtio_pmem_flush(struct nd_region *nd_region) unsigned long flags; int err, err1; + /* + * Don't bother to submit the request to the device if the device is + * not activated. + */ + if (vdev->config->get_status(vdev) & VIRTIO_CONFIG_S_NEEDS_RESET) { + dev_info(&vdev->dev, "virtio pmem device needs a reset\n"); + return -EIO; + } + might_sleep(); req_data = kmalloc(sizeof(*req_data), GFP_KERNEL); if (!req_data) |