Reserve -1 as an error code (used in programs)
diff --git a/include/polarssl/hmac_drbg.h b/include/polarssl/hmac_drbg.h
index 7f30c04..a9b4cff 100644
--- a/include/polarssl/hmac_drbg.h
+++ b/include/polarssl/hmac_drbg.h
@@ -30,12 +30,12 @@
#include "md.h"
/*
- * ! Same values as ctr_drbg.h !
+ * Error codes
*/
-#define POLARSSL_ERR_HMAC_DRBG_ENTROPY_SOURCE_FAILED -0x0001 /**< The entropy source failed. */
#define POLARSSL_ERR_HMAC_DRBG_REQUEST_TOO_BIG -0x0003 /**< Too many random requested in single call. */
#define POLARSSL_ERR_HMAC_DRBG_INPUT_TOO_BIG -0x0005 /**< Input too large (Entropy + additional). */
#define POLARSSL_ERR_HMAC_DRBG_FILE_IO_ERROR -0x0007 /**< Read/write error in file. */
+#define POLARSSL_ERR_HMAC_DRBG_ENTROPY_SOURCE_FAILED -0x0009 /**< The entropy source failed. */
#if !defined(POLARSSL_CONFIG_OPTIONS)
#define POLARSSL_HMAC_DRBG_RESEED_INTERVAL 10000 /**< Interval before reseed is performed by default */