diff options
| author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-09-11 04:34:46 -0300 |
|---|---|---|
| committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-09-11 04:34:46 -0300 |
| commit | 863981e96738983919de841ec669e157e6bdaeb0 (patch) | |
| tree | d6d89a12e7eb8017837c057935a2271290907f76 /drivers/dma/edma.c | |
| parent | 8dec7c70575785729a6a9e6719a955e9c545bcab (diff) | |
Linux-libre 4.7.1-gnupck-4.7.1-gnu
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) */ |