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In SKL+ platforms, all IPC commands are serialised, i.e. the driver sends a new IPC to DSP, only after receiving a reply from the firmware for the current IPC. Hence it seems apparent that there is only a single modifier of the IPC RX List. However, during an IPC timeout case in a multithreaded environment, there is a possibility of the list element being deleted two times if not properly protected. So, use spin lock save/restore to prevent rx_list corruption. Signed-off-by: Pardha Saradhi K <pardha.saradhi.kesapragada@intel.com> Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty@intel.com> Acked-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Mark Brown <broonie@kernel.org> |
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| atom | ||
| baytrail | ||
| boards | ||
| common | ||
| haswell | ||
| skylake | ||
| Kconfig | ||
| Makefile | ||