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Subject[RFC patch resend] DMA engine/Langwell: release LLI pool
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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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