On Tue, Oct 06, 2009 at 11:23:31PM +0100, Alan Cox wrote: > On Tue, 6 Oct 2009 23:12:17 +0200 > Oliver Neukum <oliver@xxxxxxxxxx> wrote: > > > Am Dienstag, 6. Oktober 2009 17:06:57 schrieb Alan Cox: > > > Opticon now takes the right mutex to check the port status but the status > > > check is done wrongly for the modern serial code, so fix it. > > > > As Alan Stern noticed, it seems like we have an ab-ba deadlock here > > between open and resume regarding pm_mutex and port->mutex. > > Oh well I guess someone with hardware will have to fix that. > > Do we actually need a separate pm_mutex anyway ? The pm_mutex is actually not aquired during open (and Alan Stern just confirmed that), so there is no dead-lock with port->mutex. /Johan -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
