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cnl: dw-dma: Verify dma not NULL 

Check if returned DMA is not NULL.

Signed-off-by: Tomasz Lauda <tomasz.lauda@linux.intel.com>
This commit is contained in:
Tomasz Lauda 2018-03-29 13:55:08 +02:00 committed by Liam Girdwood
parent 7f9d39c819
commit 98d3a838cb
1 changed files with 10 additions and 6 deletions
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16
src/drivers/dw-dma.c
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@ -1150,15 +1150,19 @@ static void dw_dma_irq_cnl(void *data)
/*check interrupt status of DMA controller 0*/
dma = dma_get(DMA_GP_LP_DMAC0);
status_intr = dw_read(dma, DW_INTR_STATUS);
if (status_intr)
dw_dma_irq_handler(dma);
if (dma) {
status_intr = dw_read(dma, DW_INTR_STATUS);
if (status_intr)
dw_dma_irq_handler(dma);
}
/*check interrupt status of DMA controller 1*/
dma = dma_get(DMA_GP_LP_DMAC1);
status_intr = dw_read(dma, DW_INTR_STATUS);
if (status_intr)
dw_dma_irq_handler(dma);
if (dma) {
status_intr = dw_read(dma, DW_INTR_STATUS);
if (status_intr)
dw_dma_irq_handler(dma);
}
}
#endif