netdev - [PATCH 3/4] media: ivtv: use scnprintf

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Message-ID:
 <SYBPR01MB7881E898640B21ECD10A9F4BAFC3A@SYBPR01MB7881.ausprd01.prod.outlook.com>
Date: Fri,  7 Nov 2025 13:16:15 +0800
From: Junrui Luo <moonafterrain@...look.com>
To: linux-kernel@...r.kernel.org
Cc: pmladek@...e.com,
	rostedt@...dmis.org,
	andriy.shevchenko@...ux.intel.com,
	akpm@...ux-foundation.org,
	tiwai@...e.com,
	perex@...ex.cz,
	linux-sound@...r.kernel.org,
	mchehab@...nel.org,
	awalls@...metrocast.net,
	linux-media@...r.kernel.org,
	davem@...emloft.net,
	edumazet@...gle.com,
	kuba@...nel.org,
	pabeni@...hat.com,
	netdev@...r.kernel.org,
	Junrui Luo <moonafterrain@...look.com>
Subject: [PATCH 3/4] media: ivtv: use scnprintf_append for i2c adapter name

Replace sprintf(itv->i2c_adap.name + strlen(...), ...) with
scnprintf_append() for building the i2c adapter name. This provides
proper bounds checking and improves code readability.

Signed-off-by: Junrui Luo <moonafterrain@...look.com>
---
 drivers/media/pci/ivtv/ivtv-i2c.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/media/pci/ivtv/ivtv-i2c.c b/drivers/media/pci/ivtv/ivtv-i2c.c
index 28cb22d6a892..a12c6b9fb4a7 100644
--- a/drivers/media/pci/ivtv/ivtv-i2c.c
+++ b/drivers/media/pci/ivtv/ivtv-i2c.c
@@ -711,8 +711,7 @@ int init_ivtv_i2c(struct ivtv *itv)
 	itv->i2c_algo.data = itv;
 	itv->i2c_adap.algo_data = &itv->i2c_algo;
 
-	sprintf(itv->i2c_adap.name + strlen(itv->i2c_adap.name), " #%d",
-		itv->instance);
+	scnprintf_append(itv->i2c_adap.name, sizeof(itv->i2c_adap.name), " #%d", itv->instance);
 	i2c_set_adapdata(&itv->i2c_adap, &itv->v4l2_dev);
 
 	itv->i2c_client = ivtv_i2c_client_template;
-- 
2.51.1.dirty