[PATCH] tools/testing/nvdimm: Fix error handling

[Christophe JAILLET]

'device_create_with_groups()' returns an error pointer in case of error,
not NULL. So test it with IS_ERR.

Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
---
 tools/testing/nvdimm/test/nfit.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/nvdimm/test/nfit.c b/tools/testing/nvdimm/test/nfit.c
index c9a6458cb63e..a99a1b64dd84 100644
--- a/tools/testing/nvdimm/test/nfit.c
+++ b/tools/testing/nvdimm/test/nfit.c
@@ -715,7 +715,7 @@ static int nfit_test0_alloc(struct nfit_test *t)
 				&t->pdev.dev, 0, NULL,
 				nfit_test_dimm_attribute_groups,
 				"test_dimm%d", i);
-		if (!t->dimm_dev[i])
+		if (IS_ERR(t->dimm_dev[i]))
 			return -ENOMEM;
 	}
 
-- 
2.9.3