diff options
| author | Ingo Molnar <mingo@elte.hu> | 2011-05-26 13:51:31 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-05-26 13:51:35 +0200 |
| commit | de66ee979d0ea45171cc2501750e9f9f22f5a690 (patch) | |
| tree | 5ab1a5c6b596b9b786902fb380274e1e1f4ceb13 /drivers/mmc/host/tmio_mmc_dma.c | |
| parent | 916f676f8dc016103f983c7ec54c18ecdbb6e349 (diff) | |
| parent | 4db70f73e56961b9bcdfd0c36c62847a18b7dbb5 (diff) | |
Merge branch 'linus' into x86/urgent
Merge reason: we want to queue up a dependent patch.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'drivers/mmc/host/tmio_mmc_dma.c')
| -rw-r--r-- | drivers/mmc/host/tmio_mmc_dma.c | 21 |
1 files changed, 12 insertions, 9 deletions
diff --git a/drivers/mmc/host/tmio_mmc_dma.c b/drivers/mmc/host/tmio_mmc_dma.c index d3de74ab633e..25f1ad6cbe09 100644 --- a/drivers/mmc/host/tmio_mmc_dma.c +++ b/drivers/mmc/host/tmio_mmc_dma.c @@ -256,7 +256,10 @@ static bool tmio_mmc_filter(struct dma_chan *chan, void *arg) void tmio_mmc_request_dma(struct tmio_mmc_host *host, struct tmio_mmc_data *pdata) { /* We can only either use DMA for both Tx and Rx or not use it at all */ - if (pdata->dma) { + if (!pdata->dma) + return; + + if (!host->chan_tx && !host->chan_rx) { dma_cap_mask_t mask; dma_cap_zero(mask); @@ -284,18 +287,18 @@ void tmio_mmc_request_dma(struct tmio_mmc_host *host, struct tmio_mmc_data *pdat tasklet_init(&host->dma_complete, tmio_mmc_tasklet_fn, (unsigned long)host); tasklet_init(&host->dma_issue, tmio_mmc_issue_tasklet_fn, (unsigned long)host); + } - tmio_mmc_enable_dma(host, true); + tmio_mmc_enable_dma(host, true); + + return; - return; ebouncebuf: - dma_release_channel(host->chan_rx); - host->chan_rx = NULL; + dma_release_channel(host->chan_rx); + host->chan_rx = NULL; ereqrx: - dma_release_channel(host->chan_tx); - host->chan_tx = NULL; - return; - } + dma_release_channel(host->chan_tx); + host->chan_tx = NULL; } void tmio_mmc_release_dma(struct tmio_mmc_host *host) |