| Message ID | 1465321121-22238-4-git-send-email-peter.griffin@linaro.org |
|---|---|
| State | Not Applicable, archived |
| Headers | show |
On Tue, Jun 7, 2016 at 7:38 PM, Peter Griffin <peter.griffin@linaro.org> wrote: > There is no point in calculating the residue if there is no > txstate to store the value. > > Signed-off-by: Peter Griffin <peter.griffin@linaro.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Yours, Linus Walleij -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/drivers/dma/coh901318.c b/drivers/dma/coh901318.c index c340ca9..c100616 100644 --- a/drivers/dma/coh901318.c +++ b/drivers/dma/coh901318.c @@ -2422,7 +2422,7 @@ coh901318_tx_status(struct dma_chan *chan, dma_cookie_t cookie, enum dma_status ret; ret = dma_cookie_status(chan, cookie, txstate); - if (ret == DMA_COMPLETE) + if (ret == DMA_COMPLETE || !txstate) return ret; dma_set_residue(txstate, coh901318_get_bytes_left(chan));
There is no point in calculating the residue if there is no txstate to store the value. Signed-off-by: Peter Griffin <peter.griffin@linaro.org> --- drivers/dma/coh901318.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)