1 files changed, 9 insertions, 2 deletions

diff --git a/src/plugins/tiff_extractor.c b/src/plugins/tiff_extractor.c
index b58e732..d944be1 100644
--- a/src/plugins/tiff_extractor.c
+++ b/src/plugins/tiff_extractor.c
@@ -30,6 +30,8 @@ addKeyword (EXTRACTOR_MetaDataProcessor proc,
             const char *keyword, 
             enum EXTRACTOR_MetaType type)
 {
+  if (keyword == NULL)
+    return 0;
   return proc (proc_cls,
                "tiff",
                type,
@@ -188,7 +190,10 @@ EXTRACTOR_tiff_extract (const char *data,
                   snprintf (tmp, 
                             sizeof(tmp), "%ux%u",
                             width, length);
-                  addKeyword (proc, proc_cls, strdup (tmp), EXTRACTOR_METATYPE_IMAGE_DIMENSIONS);
+                  addKeyword (proc, 
+                              proc_cls, 
+                              tmp, 
+                              EXTRACTOR_METATYPE_IMAGE_DIMENSIONS);
                 }
               break;
             case TAG_WIDTH:
@@ -203,7 +208,9 @@ EXTRACTOR_tiff_extract (const char *data,
                             sizeof(tmp), 
                             "%ux%u",
                             width, length);
-                  addKeyword (proc, proc_cls, strdup (tmp), EXTRACTOR_METATYPE_IMAGE_DIMENSIONS);
+                  addKeyword (proc, proc_cls, 
+                              tmp, 
+                              EXTRACTOR_METATYPE_IMAGE_DIMENSIONS);
                 }
               break;
             case TAG_SOFTWARE: