Re: [PATCH] INPUT: fix hidinput_connect ignoring retval from input_register_device

From: Dmitry Torokhov
Date: Mon Oct 29 2007 - 08:55:19 EST


On 10/29/07, Jiri Kosina <jikos@xxxxxxxx> wrote:
> On Mon, 29 Oct 2007, Dirk Hohndel wrote:
>
> > [INPUT] hidinput_connect incorrectly ignored return value from
> > input_register_device
> > Signed-off-by: Dirk Hohndel <hohndel@xxxxxxxxxxxxxxx>
>
> Will apply

Please don't - the fix is completely broken for multi-input devices -
if 2nd device fails to register we bail out of hidinput_connect and
thus never set HID_CLAIMED_INPUT bit. So when we disconnect device we
never call hidinput_disconnect and who knows what will happen after
that.

hidinput_connect() should properly unwind already registered devices
after failure.

--
Dmitry
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