From: Wei Yongjun <weiyongjun1@huawei.com>
Date: Mon, 8 Mar 2021 12:28:02 +0000 (+0100)
Subject: media: m88ds3103: fix return value check in m88ds3103_probe()
X-Git-Tag: v5.13-rc1~124^2~314
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=e61f9ea271933d987ab895c689fa37744f6fc27f;p=thirdparty%2Fkernel%2Flinux.git

media: m88ds3103: fix return value check in m88ds3103_probe()

In case of error, the function i2c_new_dummy_device() returns
ERR_PTR() and never returns NULL. The NULL test in the return
value check should be replaced with IS_ERR().

Fixes: e6089feca460 ("media: m88ds3103: Add support for ds3103b demod")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
---

diff --git a/drivers/media/dvb-frontends/m88ds3103.c b/drivers/media/dvb-frontends/m88ds3103.c
index cfa4cdde99d8a..02e8aa11e36e7 100644
--- a/drivers/media/dvb-frontends/m88ds3103.c
+++ b/drivers/media/dvb-frontends/m88ds3103.c
@@ -1904,8 +1904,8 @@ static int m88ds3103_probe(struct i2c_client *client,
 
 		dev->dt_client = i2c_new_dummy_device(client->adapter,
 						      dev->dt_addr);
-		if (!dev->dt_client) {
-			ret = -ENODEV;
+		if (IS_ERR(dev->dt_client)) {
+			ret = PTR_ERR(dev->dt_client);
 			goto err_kfree;
 		}
 	}