Documented some return values in the case of errors.

[platform/upstream/libexif.git] / libexif / exif-ifd.h

diff --git a/libexif/exif-ifd.h b/libexif/exif-ifd.h
index 26c4053..0d29491 100644 (file)
--- a/libexif/exif-ifd.h
+++ b/libexif/exif-ifd.h
@@ -36,7 +36,7 @@ typedef enum {
  * characters.
  *
  * \param[in] ifd IFD
- * \return textual name of the IFD
+ * \return textual name of the IFD, or NULL if unknown
  */
 const char *exif_ifd_get_name (ExifIfd ifd);