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| author |   Dmitry Osipenko <digetx@gmail.com> | 2020-02-09 19:33:48 +0300 |
|---|---|---|
| committer |   Vinod Koul <vkoul@kernel.org> | 2020-02-25 11:57:33 +0530 |
| commit | d8396c0576c6919a60bdb573ab3cd5947243d140 (patch) | |
| tree | f1d7ac463d418d74e8e3ccd868f8ec4a5084854c /drivers/dma/tegra20-apb-dma.c | |
| parent | dmaengine: tegra-apb: Remove assumptions about unavailable runtime PM (diff) | |
| download | linux-dev-d8396c0576c6919a60bdb573ab3cd5947243d140.tar.xz linux-dev-d8396c0576c6919a60bdb573ab3cd5947243d140.zip | |
dmaengine: tegra-apb: Remove duplicated pending_sg_req checks
There are few place in the code which check whether pending_sg_req list is
empty despite of the check already being done. Let's remove the duplicated
checks to keep code clean.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Acked-by: Jon Hunter <jonathanh@nvidia.com>
Link: https://lore.kernel.org/r/20200209163356.6439-12-digetx@gmail.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/dma/tegra20-apb-dma.c')
| -rw-r--r-- | drivers/dma/tegra20-apb-dma.c | 12 |
1 files changed, 0 insertions, 12 deletions
diff --git a/drivers/dma/tegra20-apb-dma.c b/drivers/dma/tegra20-apb-dma.c index 4d909a79839f..8d655715da68 100644 --- a/drivers/dma/tegra20-apb-dma.c +++ b/drivers/dma/tegra20-apb-dma.c @@ -504,9 +504,6 @@ static void tdc_start_head_req(struct tegra_dma_channel *tdc) { struct tegra_dma_sg_req *sg_req; - if (list_empty(&tdc->pending_sg_req)) - return; - sg_req = list_first_entry(&tdc->pending_sg_req, typeof(*sg_req), node); tegra_dma_start(tdc, sg_req); sg_req->configured = true; @@ -518,9 +515,6 @@ static void tdc_configure_next_head_desc(struct tegra_dma_channel *tdc) { struct tegra_dma_sg_req *hsgreq, *hnsgreq; - if (list_empty(&tdc->pending_sg_req)) - return; - hsgreq = list_first_entry(&tdc->pending_sg_req, typeof(*hsgreq), node); if (!list_is_last(&hsgreq->node, &tdc->pending_sg_req)) { hnsgreq = list_first_entry(&hsgreq->node, typeof(*hnsgreq), @@ -567,12 +561,6 @@ static bool handle_continuous_head_request(struct tegra_dma_channel *tdc, { struct tegra_dma_sg_req *hsgreq; - if (list_empty(&tdc->pending_sg_req)) { - dev_err(tdc2dev(tdc), "DMA is running without req\n"); - tegra_dma_stop(tdc); - return false; - } - /* * Check that head req on list should be in flight. * If it is not in flight then abort transfer as |