From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Gustavo A. R. Silva" Subject: Re: [PATCH] platform/x86: sony-laptop: Fix unintentional fall-through Date: Wed, 1 May 2019 15:40:34 -0500 Message-ID: References: <20190424180934.GA29307@embeddedor> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20190424180934.GA29307@embeddedor> Content-Language: en-US Sender: linux-kernel-owner@vger.kernel.org To: Mattia Dongili , Darren Hart , Andy Shevchenko Cc: platform-driver-x86@vger.kernel.org, linux-kernel@vger.kernel.org, Kees Cook List-Id: platform-driver-x86.vger.kernel.org Hi all, Friendly ping: Who can take this? Thanks -- Gustavo On 4/24/19 1:09 PM, Gustavo A. R. Silva wrote: > It seems that the default case should return AE_CTRL_TERMINATE, instead > of falling through to case ACPI_RESOURCE_TYPE_END_TAG and returning AE_OK; > otherwise the line of code at the end of the function is unreachable and > makes no sense: > > return AE_CTRL_TERMINATE; > > This fix is based on the following thread of discussion: > > https://lore.kernel.org/patchwork/patch/959782/ > > Fixes: 33a04454527e ("sony-laptop: Add SNY6001 device handling (sonypi reimplementation)") > Cc: stable@vger.kernel.org > Signed-off-by: Gustavo A. R. Silva > --- > drivers/platform/x86/sony-laptop.c | 8 +++++--- > 1 file changed, 5 insertions(+), 3 deletions(-) > > diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c > index 4bfbfa3f78e6..2058445fc456 100644 > --- a/drivers/platform/x86/sony-laptop.c > +++ b/drivers/platform/x86/sony-laptop.c > @@ -4424,14 +4424,16 @@ sony_pic_read_possible_resource(struct acpi_resource *resource, void *context) > } > return AE_OK; > } > + > + case ACPI_RESOURCE_TYPE_END_TAG: > + return AE_OK; > + > default: > dprintk("Resource %d isn't an IRQ nor an IO port\n", > resource->type); > + return AE_CTRL_TERMINATE; > > - case ACPI_RESOURCE_TYPE_END_TAG: > - return AE_OK; > } > - return AE_CTRL_TERMINATE; > } > > static int sony_pic_possible_resources(struct acpi_device *device) >