1 files changed, 10 insertions, 0 deletions
diff --git a/pith/charconv/filesys.c b/pith/charconv/filesys.c
index fe989aff..2515c99a 100644
--- a/pith/charconv/filesys.c
+++ b/pith/charconv/filesys.c
@@ -56,6 +56,11 @@ fname_to_locale(char *fname)
     static size_t fname_locale_len = 0;
     char *converted_fname, *p;
 
+    if(fname == NULL){	/* special call to free memory */
+      if(fname_locale_buf) fs_give((void **) &fname_locale_buf);
+      return NULL;
+    }
+
     p = convert_to_locale(fname);
     if(p)
       converted_fname = p;
@@ -103,6 +108,11 @@ fname_to_utf8(char *fname)
     static size_t fname_utf8_len = 0;
     char *converted_fname, *p;
 
+    if(fname == NULL){	/* special call to free memory */
+      if(fname_utf8_buf) fs_give((void **) &fname_utf8_buf);
+      return NULL;
+    }
+
     p = convert_to_utf8(fname, NULL, 0);
     if(p)
       converted_fname = p;