From: Penglei Jiang <superman.xpt@gmail.com>
To: mkrufky@linuxtv.org, mchehab@kernel.org
Cc: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org,
Penglei Jiang <superman.xpt@gmail.com>
Subject: [PATCH] dvb: usb: cxusb: fix uninitialized var in cxusb_gpio_tuner()
Date: Fri, 4 Apr 2025 20:21:50 -0700 [thread overview]
Message-ID: <20250405032150.123786-1-superman.xpt@gmail.com> (raw)
The function cxusb_ctrl_msg() may not set the value of the variable i,
but the code uses it later. Initialize the local variable i to 0 to
prevent potential issues.
Reported-by: syzbot+526bd95c0ec629993bf3@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/all/67f092b5.050a0220.0a13.0229.GAE@google.com
Signed-off-by: Penglei Jiang <superman.xpt@gmail.com>
---
drivers/media/usb/dvb-usb/cxusb.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/media/usb/dvb-usb/cxusb.c b/drivers/media/usb/dvb-usb/cxusb.c
index f44529b40989..7fe858bb665e 100644
--- a/drivers/media/usb/dvb-usb/cxusb.c
+++ b/drivers/media/usb/dvb-usb/cxusb.c
@@ -111,7 +111,7 @@ int cxusb_ctrl_msg(struct dvb_usb_device *d,
static void cxusb_gpio_tuner(struct dvb_usb_device *d, int onoff)
{
struct cxusb_state *st = d->priv;
- u8 o[2], i;
+ u8 o[2], i = 0;
if (st->gpio_write_state[GPIO_TUNER] == onoff &&
!st->gpio_write_refresh[GPIO_TUNER])
--
2.17.1
reply other threads:[~2025-04-05 3:22 UTC|newest]
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