diff options
| -rw-r--r-- | drivers/nvme/target/configfs.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/nvme/target/configfs.c b/drivers/nvme/target/configfs.c index 1654064deea5..7aa10788b7c8 100644 --- a/drivers/nvme/target/configfs.c +++ b/drivers/nvme/target/configfs.c @@ -849,10 +849,13 @@ static ssize_t nvmet_subsys_attr_serial_show(struct config_item *item, static ssize_t nvmet_subsys_attr_serial_store(struct config_item *item, const char *page, size_t count) { - struct nvmet_subsys *subsys = to_subsys(item); + u64 serial; + + if (sscanf(page, "%llx\n", &serial) != 1) + return -EINVAL; down_write(&nvmet_config_sem); - sscanf(page, "%llx\n", &subsys->serial); + to_subsys(item)->serial = serial; up_write(&nvmet_config_sem); return count; |