diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2015-05-03 10:49:04 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-05-03 10:49:04 -0700 |
| commit | 3333222484dc7e46fd17cc1d394088fb0d963e6c (patch) | |
| tree | 0b2c74327cf0ae200030c9892e6b267fd9a26bb1 /drivers/dma/dmaengine.c | |
| parent | 180d89f6ef9c22d088e324eb5e7d030ef3f84df0 (diff) | |
| parent | 63f89caad0e32dcfa17b2d17919816253de48996 (diff) | |
Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma
Pull slave dmaengine fixes from Vinod Koul:
"Here are the fixes in dmaengine subsystem for rc2:
- privatecnt fix for slave dma request API by Christopher
- warn fix for PM ifdef in usb-dmac by Geert
- fix hardware dependency for xgene by Jean"
* 'next' of git://git.infradead.org/users/vkoul/slave-dma:
dmaengine: increment privatecnt when using dma_get_any_slave_channel
dmaengine: xgene: Set hardware dependency
dmaengine: usb-dmac: Protect PM-only functions to kill warning
Diffstat (limited to 'drivers/dma/dmaengine.c')
| -rw-r--r-- | drivers/dma/dmaengine.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c index 0e035a8cf401..2890d744bb1b 100644 --- a/drivers/dma/dmaengine.c +++ b/drivers/dma/dmaengine.c @@ -571,11 +571,15 @@ struct dma_chan *dma_get_any_slave_channel(struct dma_device *device) chan = private_candidate(&mask, device, NULL, NULL); if (chan) { + dma_cap_set(DMA_PRIVATE, device->cap_mask); + device->privatecnt++; err = dma_chan_get(chan); if (err) { pr_debug("%s: failed to get %s: (%d)\n", __func__, dma_chan_name(chan), err); chan = NULL; + if (--device->privatecnt == 0) + dma_cap_clear(DMA_PRIVATE, device->cap_mask); } } |