rbd: allow null image name

[karo-tx-linux.git] / drivers / block / rbd.c

diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index a8521338bf46b1b3ebc56bcc10ce374d57eafc15..28052ff679ca410945337ae458b77765198b01db 100644 (file)
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -1982,7 +1982,10 @@ static ssize_t rbd_name_show(struct device *dev,
 {
        struct rbd_device *rbd_dev = dev_to_rbd_dev(dev);
 
-       return sprintf(buf, "%s\n", rbd_dev->spec->image_name);
+       if (rbd_dev->spec->image_name)
+               return sprintf(buf, "%s\n", rbd_dev->spec->image_name);
+
+       return sprintf(buf, "(unknown)\n");
 }
 
 static ssize_t rbd_image_id_show(struct device *dev,