diff options
Diffstat (limited to 'drivers/dma/edma.c')
| -rw-r--r-- | drivers/dma/edma.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/dma/edma.c b/drivers/dma/edma.c index 04070baab..8181ed131 100644 --- a/drivers/dma/edma.c +++ b/drivers/dma/edma.c @@ -1537,8 +1537,17 @@ static irqreturn_t dma_ccerr_handler(int irq, void *data) dev_vdbg(ecc->dev, "dma_ccerr_handler\n"); - if (!edma_error_pending(ecc)) + if (!edma_error_pending(ecc)) { + /* + * The registers indicate no pending error event but the irq + * handler has been called. + * Ask eDMA to re-evaluate the error registers. + */ + dev_err(ecc->dev, "%s: Error interrupt without error event!\n", + __func__); + edma_write(ecc, EDMA_EEVAL, 1); return IRQ_NONE; + } while (1) { /* Event missed register(s) */ |