diff options
Diffstat (limited to 'drivers/scsi/scsi_sysfs.c')
| -rw-r--r-- | drivers/scsi/scsi_sysfs.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c index 8d23122..158f1b55 100644 --- a/drivers/scsi/scsi_sysfs.c +++ b/drivers/scsi/scsi_sysfs.c @@ -760,11 +760,15 @@ show_vpd_##_page(struct file *filp, struct kobject *kobj, \ { \ struct device *dev = container_of(kobj, struct device, kobj); \ struct scsi_device *sdev = to_scsi_device(dev); \ + int ret; \ if (!sdev->vpd_##_page) \ return -EINVAL; \ - return memory_read_from_buffer(buf, count, &off, \ - sdev->vpd_##_page, \ + rcu_read_lock(); \ + ret = memory_read_from_buffer(buf, count, &off, \ + rcu_dereference(sdev->vpd_##_page), \ sdev->vpd_##_page##_len); \ + rcu_read_unlock(); \ + return ret; \ } \ static struct bin_attribute dev_attr_vpd_##_page = { \ .attr = {.name = __stringify(vpd_##_page), .mode = S_IRUGO }, \ |
