Updated documentation for seed functions w.r.t. return values
diff --git a/include/polarssl/ctr_drbg.h b/include/polarssl/ctr_drbg.h
index 8b0f38a..3b2b27c 100644
--- a/include/polarssl/ctr_drbg.h
+++ b/include/polarssl/ctr_drbg.h
@@ -204,7 +204,8 @@
* \param ctx CTR_DRBG context
* \param path Name of the file
*
- * \return 0 if successful, 1 on file error, or
+ * \return 0 if successful,
+ * POLARSSL_ERR_CTR_DRBG_FILE_IO_ERROR on file error, or
* POLARSSL_ERR_CTR_DRBG_ENTROPY_SOURCE_FAILED
*/
int ctr_drbg_write_seed_file( ctr_drbg_context *ctx, const char *path );
@@ -216,7 +217,8 @@
* \param ctx CTR_DRBG context
* \param path Name of the file
*
- * \return 0 if successful, 1 on file error,
+ * \return 0 if successful,
+ * POLARSSL_ERR_CTR_DRBG_FILE_IO_ERROR on file error,
* POLARSSL_ERR_CTR_DRBG_ENTROPY_SOURCE_FAILED or
* POLARSSL_ERR_CTR_DRBG_INPUT_TOO_BIG
*/