linux-kernel - [PATCH] staging: media: omap4iss: fix error return code in iss

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Message-Id: <20210304140233.8030-1-baijiaju1990@gmail.com>
Date:   Thu,  4 Mar 2021 06:02:33 -0800
From:   Jia-Ju Bai <baijiaju1990@...il.com>
To:     laurent.pinchart@...asonboard.com, mchehab@...nel.org,
        gregkh@...uxfoundation.org
Cc:     linux-media@...r.kernel.org, devel@...verdev.osuosl.org,
        linux-kernel@...r.kernel.org, Jia-Ju Bai <baijiaju1990@...il.com>
Subject: [PATCH] staging: media: omap4iss: fix error return code in iss_probe()

When omap4iss_get() returns NULL, no error return code is assigned.
To fix this bug, ret is assigned with -EINVAL as error return code.

Reported-by: TOTE Robot <oslab@...nghua.edu.cn>
Signed-off-by: Jia-Ju Bai <baijiaju1990@...il.com>
---
 drivers/staging/media/omap4iss/iss.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/media/omap4iss/iss.c b/drivers/staging/media/omap4iss/iss.c
index dae9073e7d3c..085397045b36 100644
--- a/drivers/staging/media/omap4iss/iss.c
+++ b/drivers/staging/media/omap4iss/iss.c
@@ -1236,8 +1236,10 @@ static int iss_probe(struct platform_device *pdev)
 	if (ret < 0)
 		goto error;
 
-	if (!omap4iss_get(iss))
+	if (!omap4iss_get(iss)) {
+		ret = -EINVAL;
 		goto error;
+	}
 
 	ret = iss_reset(iss);
 	if (ret < 0)
-- 
2.17.1