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From: Geert Uytterhoeven <geert@linux-m68k.org>
To: Sean Young <sean@mess.org>,
	Mauro Carvalho Chehab <mchehab@s-opensource.com>
Cc: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org,
	Geert Uytterhoeven <geert@linux-m68k.org>
Subject: [PATCH] [media] dib0700: Fix uninitialized protocol for NEC repeat codes
Date: Thu, 13 Oct 2016 15:51:39 +0200	[thread overview]
Message-ID: <1476366699-21611-1-git-send-email-geert@linux-m68k.org> (raw)

    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

When receiving an NEC repeat code, protocol is indeed not initialized.
Set it to RC_TYPE_NECX to fix this.

Fixes: 2ceeca0499d74521 ("[media] rc: split nec protocol into its three variants")
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
---
Is RC_TYPE_NECX correct, or should it be RC_TYPE_NEC?
I used RC_TYPE_NECX based on the checks for {,not_}data and
{,not_}system for the other cases.
---
 drivers/media/usb/dvb-usb/dib0700_core.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/media/usb/dvb-usb/dib0700_core.c b/drivers/media/usb/dvb-usb/dib0700_core.c
index f3196658fb700706..5878ae4d20ad27ed 100644
--- a/drivers/media/usb/dvb-usb/dib0700_core.c
+++ b/drivers/media/usb/dvb-usb/dib0700_core.c
@@ -718,6 +718,7 @@ static void dib0700_rc_urb_completion(struct urb *purb)
 		    poll_reply->nec.data       == 0x00 &&
 		    poll_reply->nec.not_data   == 0xff) {
 			poll_reply->data_state = 2;
+			protocol = RC_TYPE_NECX;
 			break;
 		}
 
-- 
1.9.1

             reply	other threads:[~2016-10-13 13:51 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-10-13 13:51 Geert Uytterhoeven [this message]
2016-10-13 21:14 ` [PATCH] [media] dib0700: Fix uninitialized protocol for NEC repeat codes 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
2016-11-07 13:04         ` Arnd Bergmann

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