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| author | Ingo Molnar <mingo@elte.hu> | 2009-02-04 14:54:56 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-02-04 14:54:56 +0100 |
| commit | bb960a1e42042e82447a5bc0941b3ab6d614bac3 (patch) | |
| tree | d2295a923fabb1b01b25bb015c4c2e42ee9df5ca /drivers/dma/dmaengine.c | |
| parent | 858770619debfb9269add63e4ba8b7c6b5538dd1 (diff) | |
| parent | 06fc732c33a7ff5e4c91bcf4a6ca86b5e335ad9a (diff) | |
| download | kernel_goldelico_gta04-bb960a1e42042e82447a5bc0941b3ab6d614bac3.zip kernel_goldelico_gta04-bb960a1e42042e82447a5bc0941b3ab6d614bac3.tar.gz kernel_goldelico_gta04-bb960a1e42042e82447a5bc0941b3ab6d614bac3.tar.bz2 | |
Merge branch 'core/xen' into x86/urgent
Diffstat (limited to 'drivers/dma/dmaengine.c')
| -rw-r--r-- | drivers/dma/dmaengine.c | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c index 403dbe7..a589930 100644 --- a/drivers/dma/dmaengine.c +++ b/drivers/dma/dmaengine.c @@ -329,9 +329,6 @@ struct dma_chan *dma_find_channel(enum dma_transaction_type tx_type) struct dma_chan *chan; int cpu; - WARN_ONCE(dmaengine_ref_count == 0, - "client called %s without a reference", __func__); - cpu = get_cpu(); chan = per_cpu_ptr(channel_table[tx_type], cpu)->chan; put_cpu(); @@ -348,9 +345,6 @@ void dma_issue_pending_all(void) struct dma_device *device; struct dma_chan *chan; - WARN_ONCE(dmaengine_ref_count == 0, - "client called %s without a reference", __func__); - rcu_read_lock(); list_for_each_entry_rcu(device, &dma_device_list, global_node) { if (dma_has_cap(DMA_PRIVATE, device->cap_mask)) @@ -961,6 +955,8 @@ void dma_run_dependencies(struct dma_async_tx_descriptor *tx) if (!dep) return; + /* we'll submit tx->next now, so clear the link */ + tx->next = NULL; chan = dep->chan; /* keep submitting up until a channel switch is detected |