Commit 527c8f6c authored by Koba Ko's avatar Koba Ko Committed by Jialin Zhang
Browse files

crypto: ccp - Release dma channels before dmaengine unrgister

stable inclusion
from stable-v5.10.150
commit d33935e666043f560abdd040a84f03d6d3868c89
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I6D0XA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=d33935e666043f560abdd040a84f03d6d3868c89



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[ Upstream commit 68dbe80f ]

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: 54cce8ec ("crypto: ccp - ccp_dmaengine_unregister release dma channels")
Reported-by: default avatarkernel test robot <lkp@intel.com>
Signed-off-by: default avatarKoba Ko <koba.ko@canonical.com>
Acked-by: default avatarTom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
Signed-off-by: default avatarJialin Zhang <zhangjialin11@huawei.com>
parent e03c82af
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