Messages in this thread Patch in this message | | | Date | Sat, 13 Aug 2011 12:16:43 +0800 | Subject | [RFC patch resend] DMA engine/Langwell: release LLI pool | From | Hillf Danton <> |
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When releasing resources allocated before for DMA channel, checking LLI pool is added and it is reclaimed if necessary.
Signed-off-by: Hillf Danton <dhillf@gmail.com> ---
--- a/drivers/dma/intel_mid_dma.c Sat Aug 13 11:44:46 2011 +++ intel_mid_dma.c Sat Aug 13 12:21:41 2011 @@ -833,6 +833,11 @@ static void intel_mid_dma_free_chan_reso midc->descs_allocated = 0; list_for_each_entry_safe(desc, _desc, &midc->active_list, desc_node) { list_del(&desc->desc_node); + if (desc->lli != NULL) { + pci_pool_free(desc->lli_pool, desc->lli, + desc->lli_phys); + pci_pool_destroy(desc->lli_pool); + } pci_pool_free(mid->dma_pool, desc, desc->txd.phys); } list_for_each_entry_safe(desc, _desc, &midc->free_list, desc_node) { @@ -841,6 +846,11 @@ static void intel_mid_dma_free_chan_reso } list_for_each_entry_safe(desc, _desc, &midc->queue, desc_node) { list_del(&desc->desc_node); + if (desc->lli != NULL) { + pci_pool_free(desc->lli_pool, desc->lli, + desc->lli_phys); + pci_pool_destroy(desc->lli_pool); + } pci_pool_free(mid->dma_pool, desc, desc->txd.phys); } spin_unlock_bh(&midc->lock);
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