diff options
| author | Tudor Ambarus <tudor.ambarus@microchip.com> | 2021-12-15 13:01:15 +0200 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2022-01-05 15:50:04 +0530 |
| commit | e77e561925df2faf77a41896df24a59141a445c9 (patch) | |
| tree | 34a2df65e8a8b362d6511907f9bf74a092b1c492 /drivers/dma/stm32-mdma.c | |
| parent | a61210cae80cac0701d5aca9551466a389717fd2 (diff) | |
dmaengine: at_xdmac: Fix race over irq_status
Tasklets run with interrupts enabled, so we need to protect
atchan->irq_status with spin_lock_irq() otherwise the tasklet can be
interrupted by the IRQ that modifies irq_status. Move the dev_dbg that
prints the irq_status in at_xdmac_handle_cyclic() and lower in
at_xdmac_tasklet() where the IRQ is disabled.
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Link: https://lore.kernel.org/r/20211215110115.191749-13-tudor.ambarus@microchip.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/dma/stm32-mdma.c')
0 files changed, 0 insertions, 0 deletions