On Wed, 18 Oct 2017, Benjamin Tissoires wrote: > > The hid-rmi driver may handle non rmi devices on composite USB devices. > > Callbacks need to make sure that the current device is a RMI device before > > calling RMI specific functions. Most callbacks already have this check, but > > this patch adds checks to the remaining callbacks. > > > > Signed-off-by: Andrew Duggan <aduggan@xxxxxxxxxxxxx> > > --- > > This is the patch which hopefully will address the X1 tablet dock freeze: > > http://www.spinics.net/lists/linux-input/msg53582.html > > > > I was not able to test on a composite USB device so I have not tested confirmed > > this will fix the reported issues. But, based on the description I think it will. > > I also added a check for rmi_raw_event() since it could be possible that another > > hid device using one of the same report IDs as an RMI device could result in calling > > into unitialized RMI functions. It was also the only callbacl left not checking the > > RMI_DEVICE flag. I wonder if this explains the attach crash. > > > > Anyway, I would appriciate it if Hendrik or someone else with the device could test this > > patch to confirm it fixes the reported behavior. > > Shouldn't rmi_hid_reset() also get the same check? I think so as well. > > From what I can see, even if the patch doesn't fix the immediate issue, > such a patch should definitively go in as those checks are clearly > missing. Agreed; however I'd like to get Hendrik's Tested-by: if possible in case this really fixes the issue, so I am not merging it right away. Hendrik, are you by any chance able to test this patch in a reasonable timeframe please? Thanks! -- Jiri Kosina SUSE Labs -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
