dmaengine: at_hdmac: fix race condition in atc_advance_work()
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 <email@example.com>
Signed-off-by: Nicolas Ferre <firstname.lastname@example.org>
Acked-by: Vinod Koul <email@example.com>
Signed-off-by: Linus Torvalds <firstname.lastname@example.org>
1 file changed