From 8b902e67c9b1dd7c7d433a252ae955973e8b3bd9 Mon Sep 17 00:00:00 2001
From: Ed Hartnett <edwardjameshartnett@gmail.com>
Date: Fri, 6 Jul 2018 06:49:32 -0600
Subject: [PATCH] fxed another clang warning

---
 libdap4/d4file.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libdap4/d4file.c b/libdap4/d4file.c
index 5dc8e6b51..13e61726d 100644
--- a/libdap4/d4file.c
+++ b/libdap4/d4file.c
@@ -119,7 +119,7 @@ NCD4_open(const char * path, int mode,
 	    nc_set_default_format(old,&new); /* restore */
 	    d4info->substrate.realfile = ((ncflags & NC_DISKLESS) == 0);
 	    d4info->substrate.filename = strdup(tmpname);
-	    if(tmpname == NULL) ret = NC_ENOMEM;
+	    if(d4info->substrate.filename == NULL) ret = NC_ENOMEM;
 	    d4info->substrate.nc4id = ncid;
 	}
         if(ret != NC_NOERR) goto done;