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| author | Robin Murphy <robin.murphy@arm.com> | 2019-02-18 19:27:06 +0100 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2019-02-19 13:10:35 +0100 |
| commit | 3e5daee5ecf314da33a890fabaa2404244cd2a36 (patch) | |
| tree | 580fa7a26b5f8b4e6147a0bee470058f6d4a59f4 /Documentation | |
| parent | Documentation :dmaengine: clarify DMA desc. pointer after submission (diff) | |
| download | linux-3e5daee5ecf314da33a890fabaa2404244cd2a36.tar.xz linux-3e5daee5ecf314da33a890fabaa2404244cd2a36.zip | |
dmaengine: mv_xor: Use correct device for DMA API
Using dma_dev->dev for mappings before it's assigned with the correct
device is unlikely to work as expected, and with future dma-direct
changes, passing a NULL device may end up crashing entirely. I don't
know enough about this hardware or the mv_xor_prep_dma_interrupt()
operation to implement the appropriate error-handling logic that would
have revealed those dma_map_single() calls failing on arm64 for as long
as the driver has been enabled there, but moving the assignment earlier
will at least make the current code operate as intended.
Fixes: 22843545b200 ("dma: mv_xor: Add support for DMA_INTERRUPT")
Reported-by: John David Anglin <dave.anglin@bell.net>
Tested-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Acked-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Tested-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'Documentation')
0 files changed, 0 insertions, 0 deletions