Re: [PATCH 1/5] HID: hid-multitouch: fix wrong protocol detection

On Thu, May 10, 2012 at 10:31 AM, Jiri Kosina [off-list ref] wrote:

On Wed, 9 May 2012, Henrik Rydberg wrote:

quoted

quoted

well, the idea was to keep the memory footprint low. As these values
are only needed at init, then I freed them once I finished using them.
I can of course skip the pointer, but in that case, wouldn't the
struct declaration be worthless?

My bad, I misread the placement of the free() statement. I was also
concerned about memory, since HID is big enough a memory hog as it
is. Barring the added complexity of this patch, it now makes more
sense.

    Acked-by: Henrik Rydberg [off-list ref]

drivers/hid/hid-multitouch.c: In function ‘mt_post_parse’:
drivers/hid/hid-multitouch.c:673: error: invalid type argument of ‘->’ (have ‘unsigned int’)
make[1]: *** [drivers/hid/hid-multitouch.o] Error 1

I believe that

       td->last_slot_field = f->usages[field_count_per_touch - 1]->hid;

should be

       td->last_slot_field = f->usages[field_count_per_touch - 1];

Ouch, indeed. the "->hid" is extra. When I split the patch 1 and 5, I
missed that one.

I tested it without the ->hid, and it's good. Do I need to resend the patch?

Cheers,
Benjamin

but I leave this up to you guys to fix.

Thanks,

--
Jiri Kosina
SUSE Labs

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