On Thu, Sep 01, 2022 at 10:47:12PM +0800, Koba Ko wrote:
> A warning is shown during shutdown,
>
> __dma_async_device_channel_unregister called while 2 clients hold a reference
> WARNING: CPU: 15 PID: 1 at drivers/dma/dmaengine.c:1110 __dma_async_device_channel_unregister+0xb7/0xc0
>
> Call dma_release_channel for occupied channles before dma_async_device_unregister.
>
> Fixes: 54cce8ecb925 ("crypto: ccp - ccp_dmaengine_unregister release dma channels")
> Reported-by: kernel test robot <lkp@xxxxxxxxx>
> Signed-off-by: Koba Ko <koba.ko@xxxxxxxxxxxxx>
> Acked-by: Tom Lendacky <thomas.lendacky@xxxxxxx>
>
> ---
> V2: Fix the unused warning
> V3: Fix the Fixes: tag.
> ---
> drivers/crypto/ccp/ccp-dmaengine.c | 6 +++++-
> 1 file changed, 5 insertions(+), 1 deletion(-)
Patch applied. Thanks.
--
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