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| author | Tudor Ambarus <tudor.ambarus@microchip.com> | 2021-12-15 14:01:10 +0300 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2022-01-05 13:20:03 +0300 |
| commit | 18deddea9184b62941395889ff7659529c877326 (patch) | |
| tree | 544c0402227535f414435f1237fe2a7eccb7ef0b /include/vdso | |
| parent | 801db90bf294f647b967e8d99b9ae121bea63d0d (diff) | |
| download | linux-18deddea9184b62941395889ff7659529c877326.tar.xz | |
dmaengine: at_xdmac: Fix concurrency over xfers_list
Since tx_submit can be called from a hard IRQ, xfers_list must be
protected with a lock to avoid concurency on the list's elements.
Since at_xdmac_handle_cyclic() is called from a tasklet, spin_lock_irq
is enough to protect from a hard IRQ.
Fixes: e1f7c9eee707 ("dmaengine: at_xdmac: creation of the atmel eXtended DMA Controller driver")
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Link: https://lore.kernel.org/r/20211215110115.191749-8-tudor.ambarus@microchip.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'include/vdso')
0 files changed, 0 insertions, 0 deletions