On Fri, 2012-04-27 at 15:02 +0800, Richard Zhao wrote: > device_prep_dma_cyclic may be call in audio trigger function which is > atomic context, so we make it atomic too. No this is wrong behavior. You should not call dma prepare functions in any of the sound trigger calls. It would make sense to move this in sound prepare callback. -- ~Vinod -- To unsubscribe from this list: send the line "unsubscribe linux-i2c" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html