diff options
Diffstat (limited to 'drivers/crypto/ccp/ccp-dmaengine.c')
| -rw-r--r-- | drivers/crypto/ccp/ccp-dmaengine.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/crypto/ccp/ccp-dmaengine.c b/drivers/crypto/ccp/ccp-dmaengine.c index b3eea329f840..e416456b2b8a 100644 --- a/drivers/crypto/ccp/ccp-dmaengine.c +++ b/drivers/crypto/ccp/ccp-dmaengine.c @@ -642,11 +642,27 @@ static void ccp_dma_release(struct ccp_device *ccp) for (i = 0; i < ccp->cmd_q_count; i++) { chan = ccp->ccp_dma_chan + i; dma_chan = &chan->dma_chan; + tasklet_kill(&chan->cleanup_tasklet); list_del_rcu(&dma_chan->device_node); } } +static void ccp_dma_release_channels(struct ccp_device *ccp) +{ + struct ccp_dma_chan *chan; + struct dma_chan *dma_chan; + unsigned int i; + + for (i = 0; i < ccp->cmd_q_count; i++) { + chan = ccp->ccp_dma_chan + i; + dma_chan = &chan->dma_chan; + + if (dma_chan->client_count) + dma_release_channel(dma_chan); + } +} + int ccp_dmaengine_register(struct ccp_device *ccp) { struct ccp_dma_chan *chan; @@ -767,6 +783,7 @@ void ccp_dmaengine_unregister(struct ccp_device *ccp) if (!dmaengine) return; + ccp_dma_release_channels(ccp); dma_async_device_unregister(dma_dev); ccp_dma_release(ccp); |