Thread: Quick check for potential problems

While I'm waiting on a response in another thread I'll quickly ask if anyone sees any potential problems with this freshly made code:

Code:

int alu_mov( alu_t *alu, uintptr_t num, uintptr_t val, size_t size )
{
	int ret = 0;
	void *dst, *src;
	
	if ( num >= ALU_REG_ID_LIMIT )
	{		
		if ( val >= ALU_REG_ID_LIMIT )
		{
			errno = 0;
			(void)memmove( (void*)num, (void*)val, size );
			ret = errno;
			return ret;
		}
		
		ret = _alu_check2( alu, ALU_REG_ID_NEED, val );
		
		if ( ret != 0 )
		{
			alu_error( ret );
			return ret;
		}
		
		dst = (void*);
		src = (alu->regv + val)->part;
		
		goto copy;
	}
	
	ret = _alu_check1( alu, num );
	
	if ( size > alu->buff.perN )
		size = alu->buff.perN;
		
	dst = (alu->regv + num)->part;
	src = (void*)val;
	
	copy:
	errno = 0;
	(void)memset( dst, 0, size );
	ret = errno;
	
	if ( ret != 0 )
	{
		alu_error( ret );
		return ret;
	}
	
	if ( size > alu->buff.perN )
		size = alu->buff.perN;
		
	errno = 0;
	(void)memmove( dst, src, size );
	ret = errno;
	
	if ( ret != 0 )
		alu_error( ret );
	
	return ret;
}

Personally I don't but never hurts to ask for 2nd opinion

Edit: Just spotted the

Code:

		dst = (void*);

line, rectified in file, left here for future readers