diff options
Diffstat (limited to 'drivers/cxl/core')
| -rw-r--r-- | drivers/cxl/core/mbox.c | 1 | ||||
| -rw-r--r-- | drivers/cxl/core/memdev.c | 10 |
2 files changed, 10 insertions, 1 deletions
diff --git a/drivers/cxl/core/mbox.c b/drivers/cxl/core/mbox.c index ab9d455e8579..1990a5940b7c 100644 --- a/drivers/cxl/core/mbox.c +++ b/drivers/cxl/core/mbox.c @@ -1272,6 +1272,7 @@ struct cxl_memdev_state *cxl_memdev_state_create(struct device *dev) mutex_init(&mds->mbox_mutex); mutex_init(&mds->event.log_lock); mds->cxlds.dev = dev; + mds->cxlds.type = CXL_DEVTYPE_CLASSMEM; return mds; } diff --git a/drivers/cxl/core/memdev.c b/drivers/cxl/core/memdev.c index 15434b1b4909..3f2d54f30548 100644 --- a/drivers/cxl/core/memdev.c +++ b/drivers/cxl/core/memdev.c @@ -41,6 +41,8 @@ static ssize_t firmware_version_show(struct device *dev, struct cxl_dev_state *cxlds = cxlmd->cxlds; struct cxl_memdev_state *mds = to_cxl_memdev_state(cxlds); + if (!mds) + return sysfs_emit(buf, "\n"); return sysfs_emit(buf, "%.16s\n", mds->firmware_version); } static DEVICE_ATTR_RO(firmware_version); @@ -52,6 +54,8 @@ static ssize_t payload_max_show(struct device *dev, struct cxl_dev_state *cxlds = cxlmd->cxlds; struct cxl_memdev_state *mds = to_cxl_memdev_state(cxlds); + if (!mds) + return sysfs_emit(buf, "\n"); return sysfs_emit(buf, "%zu\n", mds->payload_size); } static DEVICE_ATTR_RO(payload_max); @@ -63,6 +67,8 @@ static ssize_t label_storage_size_show(struct device *dev, struct cxl_dev_state *cxlds = cxlmd->cxlds; struct cxl_memdev_state *mds = to_cxl_memdev_state(cxlds); + if (!mds) + return sysfs_emit(buf, "\n"); return sysfs_emit(buf, "%zu\n", mds->lsa_size); } static DEVICE_ATTR_RO(label_storage_size); @@ -517,10 +523,12 @@ static long cxl_memdev_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { struct cxl_memdev *cxlmd = file->private_data; + struct cxl_dev_state *cxlds; int rc = -ENXIO; down_read(&cxl_memdev_rwsem); - if (cxlmd->cxlds) + cxlds = cxlmd->cxlds; + if (cxlds && cxlds->type == CXL_DEVTYPE_CLASSMEM) rc = __cxl_memdev_ioctl(cxlmd, cmd, arg); up_read(&cxl_memdev_rwsem); |