From: Sean Young <sean@mess.org>
To: Arnd Bergmann <arnd@arndb.de>
Cc: linux-media@vger.kernel.org,
Geert Uytterhoeven <geert@linux-m68k.org>,
linux-kernel@vger.kernel.org,
Mauro Carvalho Chehab <mchehab@kernel.org>
Subject: Re: [PATCH] [media] dib0700: fix nec repeat handling
Date: Wed, 2 Nov 2016 16:45:09 +0000 [thread overview]
Message-ID: <20161102164509.GA10912@gofer.mess.org> (raw)
In-Reply-To: <7477306.RsW9ioQisc@wuerfel>
On Sat, Oct 29, 2016 at 11:04:32PM +0200, Arnd Bergmann wrote:
> On Thursday, October 13, 2016 10:28:44 PM CEST Sean Young wrote:
> > When receiving a nec repeat, ensure the correct scancode is repeated
> > rather than a random value from the stack. This removes the need
> > for the bogus uninitialized_var() and also fixes the warnings:
> >
> > drivers/media/usb/dvb-usb/dib0700_core.c: In function ‘dib0700_rc_urb_completion’:
> > drivers/media/usb/dvb-usb/dib0700_core.c:679: warning: ‘protocol’ may be used uninitialized in this function
> >
> > Signed-off-by: Sean Young <sean@mess.org>
> > ---
> > drivers/media/usb/dvb-usb/dib0700_core.c | 5 +++--
> > 1 file changed, 3 insertions(+), 2 deletions(-)
>
> Acked-by: Arnd Bergmann <arnd@arndb.de>
> Cc: stable@vger.kernel.org
> Fixes: 2ceeca0499d7 ("[media] rc: split nec protocol into its three variants")
> Fixes: d3c501d1938c ("V4L/DVB: dib0700: Fix RC protocol logic to properly handle NEC/NECx and RC-5")
>
>
> The warning is gone for me too, so this obsoletes both
> https://patchwork.linuxtv.org/patch/37494/ and
> https://patchwork.kernel.org/patch/9380747/
>
> Can we get this patch merged into v4.9 soonish? The warning
> is currently disabled, but I'd like to make sure it gets turned
> on again by default, and we should fix all the actual bugs in
> the process.
So after writing the patch and submitting it, I've bought the hardware on
ebay. Without this patch you get random scancodes on nec repeats, which
the patch indeed fixes.
Tested-by: Sean Young <sean@mess.org>
Note that this has been broken forever, so it is not a regression, so
does it belong in stable?
Sean
next prev parent reply other threads:[~2016-11-02 16:45 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-13 13:51 [PATCH] [media] dib0700: Fix uninitialized protocol for NEC repeat codes Geert Uytterhoeven
2016-10-13 21:14 ` Sean Young
2016-10-13 21:28 ` [PATCH] [media] dib0700: fix nec repeat handling Sean Young
2016-10-29 21:04 ` Arnd Bergmann
2016-11-02 16:45 ` Sean Young [this message]
2016-11-07 13:04 ` Arnd Bergmann
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