On Fri, Nov 22, 2013 at 4:17 PM, Stephen Warren <swarren@xxxxxxxxxxxxx> wrote: > No, it's a bug because if dma_request_slave_channel() is documented to > return valid-or-ERR, then assuming that it can never return NULL is > inconsistent with that. The translation is only possible if it's > documented to return valid-or-ERR-but-never-NULL. Yes! We are in violent agreement about this point. Make dma_request_slave_channel return valid-or-ERR-but-never-NULL, and show me the compat user that would care if it got an EPROBE_DEFER instead of ENODEV. -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html