STM32l152c Discovery board, DMA Stops after reading correct number of ADC values, would like to start again

Change my code now to use multiple channels and added in DMA.

void DMA1_Channel1_IRQHandler(void)
{
if( DMA_GetITStatus(DMA1_IT_TC1)) {
DMA_ClearITPendingBit(DMA1_IT_GL1);
}
}

/* Configuration ------------------------------------------------------*/
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA2, ENABLE);
//reset DMA1 channe1 to default values;
DMA_DeInit(WHICH_DMA_CHANNEL);
//channel will be used for memory to memory transfer
DMA_InitStructure.DMA_M2M = DMA_M2M_Disable;
//setting normal mode (non circular)
DMA_InitStructure.DMA_Mode = DMA_Mode_Circular;
//medium priority
DMA_InitStructure.DMA_Priority = DMA_Priority_High;
//source and destination data size word=32bit
DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_HalfWord;
DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_HalfWord;
//automatic memory destination increment enable.
DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
//source address increment disable
DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
//Location assigned to peripheral register will be source
DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralSRC;
//chunk of data to be transfered
DMA_InitStructure.DMA_BufferSize = setup->adc_setups * 8;
//source and destination start addresses
DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)&(ADC1->DR);
DMA_InitStructure.DMA_MemoryBaseAddr = (uint32_t)adc1_read_value;
//send values to DMA registers
DMA_Init(WHICH_DMA_CHANNEL, &DMA_InitStructure);
// Enable DMA1 Channel Transfer Complete interrupt
DMA_ITConfig(WHICH_DMA_CHANNEL, DMA_IT_TC, ENABLE);
//Enable the WHICH_DMA
DMA_Cmd(WHICH_DMA_CHANNEL, ENABLE);
//Enable channel IRQ Channel */
NVIC_InitStructure.NVIC_IRQChannel = WHICH_DMA_CHANNEL_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
WHICH_DMA is DMA1
WHICH_DMA_CHANNEL is DMA1_Channel1
WHICH_DMA_CHANNEL_IRQn is DMA1_Channel1_IRQn

ADC_InitStructure.ADC_ScanConvMode = ENABLE;
ADC_InitStructure.ADC_ContinuousConvMode = ENABLE;