linux-kernel - [PATCH][next] [media] go7007: Remove redundant if statement

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Message-Id: <20230727174007.635572-1-colin.i.king@gmail.com>
Date:   Thu, 27 Jul 2023 18:40:07 +0100
From:   Colin Ian King <colin.i.king@...il.com>
To:     Hans Verkuil <hverkuil-cisco@...all.nl>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Greg Kroah-Hartman <gregkh@...e.de>,
        linux-media@...r.kernel.org
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH][next] [media] go7007: Remove redundant if statement

The if statement that compares msgs[i].len != 3 is always false because
it is in a code block where msg[i].len is equal to 3. The check is
redundant and can be removed.

As detected by cppcheck static analysis:
drivers/media/usb/go7007/go7007-i2c.c:168:20: warning: Opposite inner
'if' condition leads to a dead code block. [oppositeInnerCondition]

Fixes: 866b8695d67e ("Staging: add the go7007 video driver")
Signed-off-by: Colin Ian King <colin.i.king@...il.com>
---
 drivers/media/usb/go7007/go7007-i2c.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/media/usb/go7007/go7007-i2c.c b/drivers/media/usb/go7007/go7007-i2c.c
index 38339dd2f83f..2880370e45c8 100644
--- a/drivers/media/usb/go7007/go7007-i2c.c
+++ b/drivers/media/usb/go7007/go7007-i2c.c
@@ -165,8 +165,6 @@ static int go7007_i2c_master_xfer(struct i2c_adapter *adapter,
 		} else if (msgs[i].len == 3) {
 			if (msgs[i].flags & I2C_M_RD)
 				return -EIO;
-			if (msgs[i].len != 3)
-				return -EIO;
 			if (go7007_i2c_xfer(go, msgs[i].addr, 0,
 					(msgs[i].buf[0] << 8) | msgs[i].buf[1],
 					0x01, &msgs[i].buf[2]) < 0)
-- 
2.39.2