diff options
Diffstat (limited to 'drivers/dma')
| -rw-r--r-- | drivers/dma/iop-adma.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/dma/iop-adma.c b/drivers/dma/iop-adma.c index ce45f3fb0343..9c752bd295e1 100644 --- a/drivers/dma/iop-adma.c +++ b/drivers/dma/iop-adma.c @@ -288,7 +288,12 @@ static void iop_adma_tasklet(unsigned long data) { struct iop_adma_chan *iop_chan = (struct iop_adma_chan *) data; - spin_lock(&iop_chan->lock); + /* lockdep will flag depedency submissions as potentially + * recursive locking, this is not the case as a dependency + * submission will never recurse a channels submit routine. + * There are checks in async_tx.c to prevent this. + */ + spin_lock_nested(&iop_chan->lock, SINGLE_DEPTH_NESTING); __iop_adma_slot_cleanup(iop_chan); spin_unlock(&iop_chan->lock); } |