X-Git-Url: https://git.verplant.org/?a=blobdiff_plain;f=src%2Fdf.c;h=af54c92f9f7da4ce3c919deb11d93c12478e8d85;hb=4d370741101aeb037ae52f3529a4a0869e0dc08a;hp=83be176469556f53fa627cc682521ffb4db367ff;hpb=2761915bed8c6caea41018be3e675aa712cc0b0a;p=collectd.git

diff --git a/src/df.c b/src/df.c
index 83be1764..af54c92f 100644
--- a/src/df.c
+++ b/src/df.c
@@ -25,7 +25,6 @@
 
 #include "common.h"
 #include "plugin.h"
-#include "configfile.h"
 #include "utils_mount.h"
 #include "utils_ignorelist.h"
 
@@ -230,7 +229,10 @@ static int df_read (void)
 			}
 
 			/* Duplicate found: leave non-NULL dup_ptr. */
-			if (by_device && (strcmp (mnt_ptr->spec_device, dup_ptr->spec_device) == 0))
+			if (by_device
+                            && (mnt_ptr->spec_device != NULL)
+                            && (dup_ptr->spec_device != NULL)
+                            && (strcmp (mnt_ptr->spec_device, dup_ptr->spec_device) == 0))
 				break;
 			else if (!by_device && (strcmp (mnt_ptr->dir, dup_ptr->dir) == 0))
 				break;