Use byte for isAllocated bit-field. Cleanup some of the "heap" hint logic.

wolfcrypt/src/aes.c

@@ -11448,16 +11448,18 @@ int wc_AesInit_Label(Aes* aes, const char* label, void* heap, int devId)
 /* Free Aes from use with async hardware */
 void wc_AesFree(Aes* aes)
 {
-    unsigned int isAllocated;
+    void* heap;
+    byte isAllocated;
 
     if (aes == NULL) {
         return;
     }
 
+    heap = aes->heap;
     isAllocated = aes->isAllocated;
 
 #ifdef WC_DEBUG_CIPHER_LIFECYCLE
-    (void)wc_debug_CipherLifecycleFree(&aes->CipherLifecycleTag, aes->heap, 1);
+    (void)wc_debug_CipherLifecycleFree(&aes->CipherLifecycleTag, heap, 1);
 #endif
 
 #if defined(WOLFSSL_ASYNC_CRYPT) && defined(WC_ASYNC_ENABLE_AES)
@@ -11495,7 +11497,7 @@ void wc_AesFree(Aes* aes)
 #endif
 #if defined(WOLFSSL_AESGCM_STREAM) && defined(WOLFSSL_SMALL_STACK) && \
     !defined(WOLFSSL_AESNI)
-    XFREE(aes->streamData, aes->heap, DYNAMIC_TYPE_AES);
+    XFREE(aes->streamData, heap, DYNAMIC_TYPE_AES);
     aes->streamData = NULL;
 #endif
 
@@ -11524,7 +11526,7 @@ void wc_AesFree(Aes* aes)
 #endif
 
     if (isAllocated) {
-        XFREE(aes, aes->heap, DYNAMIC_TYPE_AES);
+        XFREE(aes, heap, DYNAMIC_TYPE_AES);
     }
 
 }

wolfcrypt/src/curve25519.c

@@ -707,14 +707,14 @@ int wc_curve25519_init(curve25519_key* key)
 /* Clean the memory of a key */
 void wc_curve25519_free(curve25519_key* key)
 {
-    int isAllocated = 0;
     void* heap;
+    byte isAllocated = 0;
 
     if (key == NULL)
        return;
 
-    isAllocated = key->isAllocated;
     heap = key->heap;
+    isAllocated = key->isAllocated;
 
 #ifdef WOLFSSL_SE050
     se050_curve25519_free_key(key);

wolfcrypt/src/ed25519.c

@@ -1023,14 +1023,14 @@ int wc_ed25519_init(ed25519_key* key)
 /* clear memory of key */
 void wc_ed25519_free(ed25519_key* key)
 {
-    int isAllocated = 0;
     void* heap;
+    byte isAllocated = 0;
 
     if (key == NULL)
         return;
 
-    isAllocated = key->isAllocated;
     heap = key->heap;
+    isAllocated = key->isAllocated;
 
 #ifdef WOLFSSL_ED25519_PERSISTENT_SHA
     ed25519_hash_free(key, &key->sha);

wolfcrypt/src/hash.c

@@ -1041,8 +1041,8 @@ int wc_HashFinal(wc_HashAlg* hash, enum wc_HashType type, byte* out)
 int wc_HashFree(wc_HashAlg* hash, enum wc_HashType type)
 {
     int ret = WC_NO_ERR_TRACE(HASH_TYPE_E); /* Default to hash type error */
-    int isAllocated = 0;
     void* heap = NULL;
+    byte isAllocated = 0;
 
     if (hash == NULL)
         return BAD_FUNC_ARG;
@@ -1172,6 +1172,7 @@ int wc_HashFree(wc_HashAlg* hash, enum wc_HashType type)
 
     if (isAllocated) {
         XFREE(hash, heap, DYNAMIC_TYPE_HASHES);
+        (void)heap;
     }
 
     return ret;

wolfcrypt/src/rsa.c

@@ -542,15 +542,15 @@ int wc_RsaGetKeyId(RsaKey* key, word32* keyId)
 int wc_FreeRsaKey(RsaKey* key)
 {
     int ret = 0;
-    int isAllocated = 0;
     void* heap;
+    byte isAllocated = 0;
 
     if (key == NULL) {
         return BAD_FUNC_ARG;
     }
 
-    isAllocated = key->isAllocated;
     heap = key->heap;
+    isAllocated = key->isAllocated;
 
     wc_RsaCleanup(key);
 
@@ -587,7 +587,7 @@ int wc_FreeRsaKey(RsaKey* key)
     mp_clear(&key->n);
 
 #ifdef WOLFSSL_XILINX_CRYPT
-    XFREE(key->mod, key->heap, DYNAMIC_TYPE_KEY);
+    XFREE(key->mod, heap, DYNAMIC_TYPE_KEY);
     key->mod = NULL;
 #endif
 

wolfssl/wolfcrypt/curve25519.h

@@ -99,8 +99,7 @@ struct curve25519_key {
     /* bit fields */
     byte pubSet:1;
     byte privSet:1;
-
-    unsigned int isAllocated:1; /* flag indicates if structure was allocated */
+    byte isAllocated:1; /* flag indicates if structure was allocated */
 };
 
 enum {

wolfssl/wolfcrypt/ed25519.h

@@ -106,10 +106,10 @@ struct ed25519_key {
     void *heap;
 #ifdef WOLFSSL_ED25519_PERSISTENT_SHA
     wc_Sha512 sha;
-    unsigned int sha_clean_flag : 1;
+    byte sha_clean_flag : 1;
 #endif
     /* flag indicates if structure was allocated */
-    unsigned int isAllocated : 1;
+    byte isAllocated : 1;
 };
 
 #ifndef WC_ED25519KEY_TYPE_DEFINED

wolfssl/wolfcrypt/hash.h

@@ -125,7 +125,7 @@ typedef union {
 typedef struct {
     wc_Hashes alg;
     enum wc_HashType type; /* sanity check */
-    unsigned int isAllocated:1; /* flag indicates if structure was allocated */
+    byte isAllocated:1; /* flag indicates if structure was allocated */
 } wc_HashAlg;
 #endif /* !NO_HASH_WRAPPER */
 

wolfssl/wolfcrypt/rsa.h

@@ -269,7 +269,7 @@ struct RsaKey {
 #if defined(WOLFSSL_RENESAS_FSPSM)
     FSPSM_RSA_CTX ctx;
 #endif
-    unsigned int isAllocated:1; /* flag indicates if structure was allocated */
+    byte isAllocated:1; /* flag indicates if structure was allocated */
 };
 
 #ifndef WC_RSAKEY_TYPE_DEFINED