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| author | Tudor Ambarus <tudor.ambarus@microchip.com> | 2022-10-25 12:02:42 +0300 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2022-11-08 08:13:57 +0300 |
| commit | 06988949df8c3007ad82036d3606d8ae72ed9000 (patch) | |
| tree | c3c901807d30b0e9398b33f5f6f1679be6e82337 /drivers/zorro | |
| parent | c6babed879fbe82796a601bf097649e07382db46 (diff) | |
| download | linux-06988949df8c3007ad82036d3606d8ae72ed9000.tar.xz | |
dmaengine: at_hdmac: Fix concurrency over descriptor
The descriptor was added to the free_list before calling the callback,
which could result in reissuing of the same descriptor and calling of a
single callback for both. Move the decriptor to the free list after the
callback is invoked.
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/20221025090306.297886-9-tudor.ambarus@microchip.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/zorro')
0 files changed, 0 insertions, 0 deletions