From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dan Carpenter Subject: Re: [PATCH] platform/x86: huawei-wmi: Fix a possible NULL deref Date: Fri, 27 Dec 2019 00:54:18 +0300 Message-ID: <20191226215418.GA3889@kadam> References: <20191225235841.14393-1-ayman.bagabas@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <20191225235841.14393-1-ayman.bagabas@gmail.com> Sender: linux-kernel-owner@vger.kernel.org To: Ayman Bagabas Cc: Darren Hart , Andy Shevchenko , Mattias Jacobsson <2pi@mok.nu>, kbuild test robot , platform-driver-x86@vger.kernel.org, linux-kernel@vger.kernel.org List-Id: platform-driver-x86.vger.kernel.org On Wed, Dec 25, 2019 at 06:58:38PM -0500, Ayman Bagabas wrote: > We're iterating over a NULL terminated array. This changelog is kind of messed up. This is how it looks in context: https://marc.info/?l=linux-kernel&m=157731837511760&w=2 The subject and the commit message are far apart. What's wrong with iterating over a NULL terminated array? The changelog doesn't say which variable is NULL. > > Fixes: 1ac9abeb2e5b ("platform/x86: huawei-wmi: Move to platform driver") > Signed-off-by: Ayman Bagabas > --- > drivers/platform/x86/huawei-wmi.c | 6 +++--- > 1 file changed, 3 insertions(+), 3 deletions(-) > > diff --git a/drivers/platform/x86/huawei-wmi.c b/drivers/platform/x86/huawei-wmi.c > index a2d846c4a7ee..42d461eeeff4 100644 > --- a/drivers/platform/x86/huawei-wmi.c > +++ b/drivers/platform/x86/huawei-wmi.c > @@ -784,13 +784,13 @@ static const struct wmi_device_id huawei_wmi_events_id_table[] = { > static int huawei_wmi_probe(struct platform_device *pdev) > { > const struct wmi_device_id *guid = huawei_wmi_events_id_table; > + struct input_dev *idev = *huawei_wmi->idev; This line seems like an unrelated change. I'm still not sure the justification for this. I really hate puzzling over patches to try figure out why a patch is making changes. regards, dan carpenter