https://github.com/torvalds/linux
Revision d202f05158442396033f416df376f8ece1f563df authored by Ludovic Desroches on 18 April 2013, 07:52:59 UTC, committed by Linus Torvalds on 18 April 2013, 15:54:22 UTC
The BUG_ON() directive is triggered probably due to a latency
modification following inclusion of commit c10d73671ad3 ("softirq:
reduce latencies").  This condition has not been met before 3.9-rc1 and
doesn't trigger without this patch.

We now make sure that DMA channel is idle before calling
atc_complete_all() which makes the BUG_ON() "protection" useless.

Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
1 parent ebe8054
History
Tip revision: d202f05158442396033f416df376f8ece1f563df authored by Ludovic Desroches on 18 April 2013, 07:52:59 UTC
dmaengine: at_hdmac: fix race condition in atc_advance_work()
Tip revision: d202f05
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