nvdimm: Fix return value of nvdimm_bus_init() if class_create() fails

Orabug: 22913653

Return proper error if class_create() fails.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
(cherry picked from commit daa1dee405d7d3d3e816b84a692e838a5647a02a)
Signed-off-by: Dan Duval <dan.duval@oracle.com>

diff --git a/drivers/nvdimm/bus.c b/drivers/nvdimm/bus.c
index 73442bd824a741cd6cc99b36eca105c3ae84dad9..7e2c43f701bc451463c5273ed3a5a1e49f6be15f 100644 (file)
--- a/drivers/nvdimm/bus.c
+++ b/drivers/nvdimm/bus.c
@@ -699,8 +699,10 @@ int __init nvdimm_bus_init(void)
        nvdimm_major = rc;
 
        nd_class = class_create(THIS_MODULE, "nd");
-       if (IS_ERR(nd_class))
+       if (IS_ERR(nd_class)) {
+               rc = PTR_ERR(nd_class);
                goto err_class;
+       }
 
        return 0;