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| author | Tudor Ambarus <tudor.ambarus@microchip.com> | 2022-10-25 12:02:38 +0300 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2022-11-08 08:13:56 +0300 |
| commit | fcd37565efdaffeac179d0f0ce980ac79bfdf569 (patch) | |
| tree | 1a2770284d0ea0df8f5c07aa9755e3a17959a5f5 /drivers/dma/ste_dma40.c | |
| parent | 8a47221fc28417ff8a32a4f92d4448a56c3cf7e1 (diff) | |
| download | linux-fcd37565efdaffeac179d0f0ce980ac79bfdf569.tar.xz | |
dmaengine: at_hdmac: Fix premature completion of desc in issue_pending
Multiple calls to atc_issue_pending() could result in a premature
completion of a descriptor from the atchan->active list, as the method
always completed the first active descriptor from the list. Instead,
issue_pending() should just take the first transaction descriptor from the
pending queue, move it to active_list and start the transfer.
Fixes: dc78baa2b90b ("dmaengine: at_hdmac: new driver for the Atmel AHB DMA Controller")
Reported-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/lkml/13c6c9a2-6db5-c3bf-349b-4c127ad3496a@axentia.se/
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Link: https://lore.kernel.org/r/20221025090306.297886-1-tudor.ambarus@microchip.com
Link: https://lore.kernel.org/r/20221025090306.297886-5-tudor.ambarus@microchip.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/dma/ste_dma40.c')
0 files changed, 0 insertions, 0 deletions