nilfs2: another dat for garbage collection

[linux-2.6-omap-h63xx.git] / drivers / scsi / scsi_ioctl.c

diff --git a/drivers/scsi/scsi_ioctl.c b/drivers/scsi/scsi_ioctl.c
index 2ae4f8fc583125d6fd2ba65f93c9e207c6f1bd9f..b98f763931c5fadb9c0b438c7099786b6ac8d41b 100644 (file)
--- a/drivers/scsi/scsi_ioctl.c
+++ b/drivers/scsi/scsi_ioctl.c
@@ -167,10 +167,17 @@ EXPORT_SYMBOL(scsi_set_medium_removal);
 static int scsi_ioctl_get_pci(struct scsi_device *sdev, void __user *arg)
 {
        struct device *dev = scsi_get_device(sdev->host);
+       const char *name;
 
         if (!dev)
                return -ENXIO;
-        return copy_to_user(arg, dev->bus_id, sizeof(dev->bus_id))? -EFAULT: 0;
+
+       name = dev_name(dev);
+
+       /* compatibility with old ioctl which only returned
+        * 20 characters */
+        return copy_to_user(arg, name, min(strlen(name), (size_t)20))
+               ? -EFAULT: 0;
 }