On 01/08/2015 09:16 AM, Nicholas Mc Guire wrote:
> wait_for_completion_timeout reaching timeout was being ignored,
> fail the self-test if timeout condition occurs.
>
> v2: fixup of coding style issues.
>
> Signed-off-by: Nicholas Mc Guire <der.herr@xxxxxxx>
Reviewed-by: Prarit Bhargava <prarit@xxxxxxxxxx>
P.
> ---
>
> this was only compile tested with
> x86_64_defconfig + CONFIG_DMA_ENGINE=y + CONFIG_INTEL_IOATDMA=m
>
> patch is against linux-next 3.19.0-rc3 -next-20150108
>
> drivers/dma/ioat/dma_v3.c | 9 ++++++---
> 1 file changed, 6 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/dma/ioat/dma_v3.c b/drivers/dma/ioat/dma_v3.c
> index be307182..a26882e 100644
> --- a/drivers/dma/ioat/dma_v3.c
> +++ b/drivers/dma/ioat/dma_v3.c
> @@ -1311,7 +1311,8 @@ static int ioat_xor_val_self_test(struct ioatdma_device *device)
>
> tmo = wait_for_completion_timeout(&cmp, msecs_to_jiffies(3000));
>
> - if (dma->device_tx_status(dma_chan, cookie, NULL) != DMA_COMPLETE) {
> + if (tmo == 0 ||
> + dma->device_tx_status(dma_chan, cookie, NULL) != DMA_COMPLETE) {
> dev_err(dev, "Self-test xor timed out\n");
> err = -ENODEV;
> goto dma_unmap;
> @@ -1377,7 +1378,8 @@ static int ioat_xor_val_self_test(struct ioatdma_device *device)
>
> tmo = wait_for_completion_timeout(&cmp, msecs_to_jiffies(3000));
>
> - if (dma->device_tx_status(dma_chan, cookie, NULL) != DMA_COMPLETE) {
> + if (tmo == 0 ||
> + dma->device_tx_status(dma_chan, cookie, NULL) != DMA_COMPLETE) {
> dev_err(dev, "Self-test validate timed out\n");
> err = -ENODEV;
> goto dma_unmap;
> @@ -1429,7 +1431,8 @@ static int ioat_xor_val_self_test(struct ioatdma_device *device)
>
> tmo = wait_for_completion_timeout(&cmp, msecs_to_jiffies(3000));
>
> - if (dma->device_tx_status(dma_chan, cookie, NULL) != DMA_COMPLETE) {
> + if (tmo == 0 ||
> + dma->device_tx_status(dma_chan, cookie, NULL) != DMA_COMPLETE) {
> dev_err(dev, "Self-test 2nd validate timed out\n");
> err = -ENODEV;
> goto dma_unmap;
>
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