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From: Ricardo Ribalda <ribalda@chromium.org>
Date: Tue, 01 Apr 2025 14:17:55 +0000
Subject: [PATCH v2 2/2] media: cec: extron-da-hd-4k-plus: Fix
Wformat-truncation
Precedence: bulk
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To: Hans Verkuil <hverkuil@xs4all.nl>,
Mauro Carvalho Chehab <mchehab@kernel.org>,
Hans de Goede <hdegoede@redhat.com>,
Sakari Ailus <sakari.ailus@linux.intel.com>,
Andy Shevchenko <andy@kernel.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-staging@lists.linux.dev, Ricardo Ribalda <ribalda@chromium.org>
X-Mailer: b4 0.14.2
From: Hans Verkuil <hverkuil@xs4all.nl>
Fix gcc8 warning:
drivers/media/cec/usb/extron-da-hd-4k-plus/extron-da-hd-4k-plus.c:1014:44: =
warning: 'DCEC' directive output may be truncated writing 4 bytes into a re=
gion of size between 0 and 53 [-Wformat-truncation=3D]
Resizing the 'buf' and 'cmd' arrays fixed the warning.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
---
drivers/media/cec/usb/extron-da-hd-4k-plus/extron-da-hd-4k-plus.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/media/cec/usb/extron-da-hd-4k-plus/extron-da-hd-4k-plu=
s.c b/drivers/media/cec/usb/extron-da-hd-4k-plus/extron-da-hd-4k-plus.c
index cfbfc4c1b2e67fec9434aa6852ab465ad8c11225..41d019b01ec09d1d3e72c891550=
42888b7948463 100644
--- a/drivers/media/cec/usb/extron-da-hd-4k-plus/extron-da-hd-4k-plus.c
+++ b/drivers/media/cec/usb/extron-da-hd-4k-plus/extron-da-hd-4k-plus.c
@@ -1002,8 +1002,8 @@ static int extron_cec_adap_transmit(struct cec_adapte=
r *adap, u8 attempts,
u32 signal_free_time, struct cec_msg *msg)
{
struct extron_port *port =3D cec_get_drvdata(adap);
- char buf[CEC_MAX_MSG_SIZE * 3 + 1];
- char cmd[CEC_MAX_MSG_SIZE * 3 + 13];
+ char buf[(CEC_MAX_MSG_SIZE - 1) * 3 + 1];
+ char cmd[sizeof(buf) + 14];
unsigned int i;
=20
if (port->disconnected)
--=20
2.49.0.472.ge94155a9ec-goog