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https://github.com/yuzu-emu/mbedtls.git
synced 2024-11-29 08:54:23 +01:00
Remove redundant block_size validity check
Check the value only once, as soon as we've obtained it.
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@ -527,6 +527,10 @@ int mbedtls_cipher_update( mbedtls_cipher_context_t *ctx, const unsigned char *i
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*olen = 0;
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block_size = mbedtls_cipher_get_block_size( ctx );
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if ( 0 == block_size )
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{
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return( MBEDTLS_ERR_CIPHER_INVALID_CONTEXT );
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}
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if( ctx->cipher_info->mode == MBEDTLS_MODE_ECB )
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{
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@ -562,11 +566,6 @@ int mbedtls_cipher_update( mbedtls_cipher_context_t *ctx, const unsigned char *i
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}
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#endif
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if ( 0 == block_size )
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{
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return( MBEDTLS_ERR_CIPHER_INVALID_CONTEXT );
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}
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if( input == output &&
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( ctx->unprocessed_len != 0 || ilen % block_size ) )
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{
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@ -625,11 +624,6 @@ int mbedtls_cipher_update( mbedtls_cipher_context_t *ctx, const unsigned char *i
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*/
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if( 0 != ilen )
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{
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if( 0 == block_size )
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{
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return( MBEDTLS_ERR_CIPHER_INVALID_CONTEXT );
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}
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/* Encryption: only cache partial blocks
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* Decryption w/ padding: always keep at least one whole block
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* Decryption w/o padding: only cache partial blocks
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