From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Date: Wed, 18 Jun 2014 11:46:11 +0300 From: Andrei Emeltchenko To: Szymon Janc Cc: linux-bluetooth@vger.kernel.org Subject: Re: [PATCH 05/17] android/gatt: Fix wrong initial value Message-ID: <20140618084609.GC12463@aemeltch-MOBL1> References: <1402905472-17643-1-git-send-email-Andrei.Emeltchenko.news@gmail.com> <1402905472-17643-5-git-send-email-Andrei.Emeltchenko.news@gmail.com> <3045098.LyDRGR9gjU@athlon> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <3045098.LyDRGR9gjU@athlon> Sender: linux-bluetooth-owner@vger.kernel.org List-ID: Hi Szymon, On Tue, Jun 17, 2014 at 11:21:16PM +0200, Szymon Janc wrote: > Hi Andrei, > > On Monday 16 June 2014 10:57:40 Andrei Emeltchenko wrote: > > From: Andrei Emeltchenko > > > > Initialize value_len to -1 since otherwise check value_len >= 0 does not > > make sense. > > --- > > android/gatt.c | 2 +- > > 1 file changed, 1 insertion(+), 1 deletion(-) > > > > diff --git a/android/gatt.c b/android/gatt.c > > index eb977d5..c5cb58f 100644 > > --- a/android/gatt.c > > +++ b/android/gatt.c > > @@ -4288,7 +4288,7 @@ static void read_requested_attributes(void *data, void > > *user_data) struct request_processing_data *process_data = user_data; > > uint32_t permissions; > > uint8_t *value, error; > > - int value_len = 0; > > + int value_len = -1; > > > > if (!gatt_db_get_attribute_permissions(gatt_db, resp_data->handle, > > &permissions)) { > > This is not correct. value_len == -1 means that callback was called from > gatt_db_read() and response will be filled later. Do you mean that in gatt_db_read() we should check for !*length not !length like it is checked now? Otherwise it does not have effect. Best regards Andrei Emeltchenko