diff --git a/lib/pam_get_data.c b/lib/pam_get_data.c
index 21ace5a..ae947a5 100644
--- a/lib/pam_get_data.c
+++ b/lib/pam_get_data.c
@@ -84,6 +84,7 @@ pam_get_data(const pam_handle_t *pamh,
  * context specified by the =pamh argument.
  * A pointer to the object is stored in the location pointed to by the
  * =data argument.
+ * If =pam_get_data fails, the =data argument is untouched.
  *
  * This function and its counterpart =pam_set_data are useful for managing
  * data that are meaningful only to a particular service module.
diff --git a/lib/pam_get_item.c b/lib/pam_get_item.c
index 7ee71b9..939e29c 100644
--- a/lib/pam_get_item.c
+++ b/lib/pam_get_item.c
@@ -108,10 +108,12 @@ pam_get_item(const pam_handle_t *pamh,
 
 /**
  * The =pam_get_item function stores a pointer to the item specified by
- * the =item_type argument in the location specified by the =item
+ * the =item_type argument in the location pointed to by the =item
  * argument.
  * The item is retrieved from the PAM context specified by the =pamh
  * argument.
+ * If =pam_get_item fails, the =item argument is untouched.
+ *
  * The following item types are recognized:
  *
  *	=PAM_SERVICE: