libnvdimm, blk: add support for blk integrity

[deliverable/linux.git] / drivers / nvdimm / core.c

diff --git a/drivers/nvdimm/core.c b/drivers/nvdimm/core.c
index 1d96b9a6e4cc0fb0274c9403ea6925095f04afc2..4288169432de7167f8a06437ab7aacb5c4a1bf42 100644 (file)
--- a/drivers/nvdimm/core.c
+++ b/drivers/nvdimm/core.c
@@ -379,6 +379,9 @@ int nd_integrity_init(struct gendisk *disk, unsigned long meta_size)
        };
        int ret;
 
+       if (meta_size == 0)
+               return 0;
+
        ret = blk_integrity_register(disk, &integrity);
        if (ret)
                return ret;