On Wed, Feb 25, 2015 at 11:23 AM, Arnd Bergmann <a...@arndb.de> wrote: > On Wednesday 25 February 2015 11:20:41 Joshua Clayton wrote: >> Hello folks, >> I notice that io_request_and_map has no inverse. >> I would like to add a new function to undo what it does. >> > > What do you want to use this for? So far all users are in essential drivers > (clk and clocksource) that result in a boot failure if this goes wrong. > That explains a lot. It looks (to my n00b eye) like this function leaks some references, which is more ok if the ref counters should never be decremented to 0.
> Normal drivers can probably always use devm_ioremap_resource(), which > has an automatic cleanup. > Hmmm. My use case is indeed a normal driver, which could definitely use devm_ioremap_resource() > Arnd That would leave only "completeness" as a reason. Probably not needed. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
