On Tue, May 5, 2015 at 12:10 AM, Johan Hovold <johan@xxxxxxxxxx> wrote: > These patches fix a number of issues with the gpio sysfs interface, > including > > - fix memory leaks and crashes on device hotplug > - straighten out the convoluted locking > - reduce sysfs-interface latencies through more fine-grained locking > - more clearly separate the sysfs-interface implementation from gpiolib > core > > The first patch is marked for stable and could go into 4.1. [ May > already have been applied but not pushed by Linus, but included in v2 > for completeness. ] > > Unfortunately we can't just kill the gpio sysfs interface, but these > patches will make it more manageable and should allow us to implement a > new user-space interface while maintaining the old one (for a while at > least) without losing our sanity. > > Note that there is still a race between chip remove and gpiod_request (and > therefore sysfs export), which needs to be fixed separately (for instance as > part of a generic solution to chip hotplugging). Reiterating my Reviewed-by: Alexandre Courbot <acourbot@xxxxxxxxxx> on this very nice series. -- To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
