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Date: Mon, 6 May 2019 16:35:21 -0500 From: "Gustavo A. R. Silva" <gustavo@...eddedor.com> To: Andy Shevchenko <andy.shevchenko@...il.com> Cc: Mattia Dongili <malattia@...ux.it>, Darren Hart <dvhart@...radead.org>, Andy Shevchenko <andy@...radead.org>, Platform Driver <platform-driver-x86@...r.kernel.org>, Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, Kees Cook <keescook@...omium.org> Subject: Re: [PATCH] platform/x86: sony-laptop: Fix unintentional fall-through On 5/6/19 7:23 AM, Andy Shevchenko wrote: > On Wed, May 1, 2019 at 11:42 PM Gustavo A. R. Silva > <gustavo@...eddedor.com> wrote: >> >> Hi all, >> >> Friendly ping: >> >> Who can take this? > > Pushed to my review and testing queue, thanks! > Awesome. :) Thanks, Andy. -- Gustavo > >> >> 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@...r.kernel.org >>> Signed-off-by: Gustavo A. R. Silva <gustavo@...eddedor.com> >>> --- >>> 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) >>> > > >
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