diff options
Diffstat (limited to 'drivers/dma/dmaengine.c')
| -rw-r--r-- | drivers/dma/dmaengine.c | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c index ed610b497518..d5d30ed863ce 100644 --- a/drivers/dma/dmaengine.c +++ b/drivers/dma/dmaengine.c @@ -627,18 +627,13 @@ EXPORT_SYMBOL_GPL(__dma_request_channel); struct dma_chan *dma_request_slave_channel_reason(struct device *dev, const char *name) { - struct dma_chan *chan; - /* If device-tree is present get slave info from here */ if (dev->of_node) return of_dma_request_slave_channel(dev->of_node, name); /* If device was enumerated by ACPI get slave info from here */ - if (ACPI_HANDLE(dev)) { - chan = acpi_dma_request_slave_chan_by_name(dev, name); - if (chan) - return chan; - } + if (ACPI_HANDLE(dev)) + return acpi_dma_request_slave_chan_by_name(dev, name); return ERR_PTR(-ENODEV); } @@ -1014,6 +1009,7 @@ static void dmaengine_unmap(struct kref *kref) dma_unmap_page(dev, unmap->addr[i], unmap->len, DMA_BIDIRECTIONAL); } + cnt = unmap->map_cnt; mempool_free(unmap, __get_unmap_pool(cnt)->pool); } @@ -1079,6 +1075,7 @@ dmaengine_get_unmap_data(struct device *dev, int nr, gfp_t flags) memset(unmap, 0, sizeof(*unmap)); kref_init(&unmap->kref); unmap->dev = dev; + unmap->map_cnt = nr; return unmap; } |