commit 775293e93fbc9efafa4672ba8698e427613927f6

Author: Jeff Moyer <jmoyer@redhat.com>

Date:   Mon Oct 16 15:07:38 2017 -0400

    btt_check_arenas: fix use of uninitialized variable

    Coverity complains that rc, passed to btt_xlat_status, may be

    used uninitialized.  Further, we could then dereference a NULL

    pointer.  Fix this.

    Signed-off-by: Jeff Moyer <jmoyer@redhat.com>

diff --git a/ndctl/check.c b/ndctl/check.c

index 915bb9d..93f95c6 100644

--- a/ndctl/check.c

+++ b/ndctl/check.c

@@ -582,9 +582,10 @@ static int btt_check_arenas(struct btt_chk *bttc)

 			break;

 	}

-	btt_xlat_status(a, rc);

-	if (rc)

+	if (a && rc != BTT_OK) {

+		btt_xlat_status(a, rc);

 		return -ENXIO;

+	}

 	return 0;

 }