linux-kernel - [PATCH 3.10 104/250] ite-cir: initialize use

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Message-Id: <1496876436-32402-105-git-send-email-w@1wt.eu>
Date:   Thu,  8 Jun 2017 00:58:10 +0200
From:   Willy Tarreau <w@....eu>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org,
        linux@...ck-us.net
Cc:     Nicolas Iooss <nicolas.iooss_linux@....org>,
        Mauro Carvalho Chehab <mchehab@...pensource.com>,
        Willy Tarreau <w@....eu>
Subject: [PATCH 3.10 104/250] ite-cir: initialize use_demodulator before using it

From: Nicolas Iooss <nicolas.iooss_linux@....org>

commit 7ec03e60ef81c19b5d3a46dd070ee966774b860f upstream.

Function ite_set_carrier_params() uses variable use_demodulator after
having initialized it to false in some if branches, but this variable is
never set to true otherwise.

This bug has been found using clang -Wsometimes-uninitialized warning
flag.

Fixes: 620a32bba4a2 ("[media] rc: New rc-based ite-cir driver for
several ITE CIRs")

Signed-off-by: Nicolas Iooss <nicolas.iooss_linux@....org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@...pensource.com>
Signed-off-by: Willy Tarreau <w@....eu>
---
 drivers/media/rc/ite-cir.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/media/rc/ite-cir.c b/drivers/media/rc/ite-cir.c
index 63b4225..7a754ec 100644
--- a/drivers/media/rc/ite-cir.c
+++ b/drivers/media/rc/ite-cir.c
@@ -263,6 +263,8 @@ static void ite_set_carrier_params(struct ite_dev *dev)
 
 			if (allowance > ITE_RXDCR_MAX)
 				allowance = ITE_RXDCR_MAX;
+
+			use_demodulator = true;
 		}
 	}
 
-- 
2.8.0.rc2.1.gbe9624a