From 89ffb28051c12f14d101437d4d1d245475ecb5f0 Mon Sep 17 00:00:00 2001
From: Gilles Peskine <Gilles.Peskine@arm.com>
Date: Wed, 18 Nov 2020 15:23:08 +0100
Subject: [PATCH] Fix option compatibility check

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
---
 include/mbedtls/check_config.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/mbedtls/check_config.h b/include/mbedtls/check_config.h
index 939ec6c65b..accf51e321 100644
--- a/include/mbedtls/check_config.h
+++ b/include/mbedtls/check_config.h
@@ -606,7 +606,7 @@
 #endif
 
 #if defined(MBEDTLS_PSA_INJECT_ENTROPY) &&              \
-    !defined(MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG)
+    defined(MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG)
 #error "MBEDTLS_PSA_INJECT_ENTROPY is not compatible with MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG"
 #endif