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Message-ID: <20221126022813.57372-1-zhengyongjun3@huawei.com>
Date: Sat, 26 Nov 2022 02:28:13 +0000
From: Zheng Yongjun <zhengyongjun3@...wei.com>
To: <eajames@...ux.ibm.com>, <mchehab@...nel.org>,
<linux-media@...r.kernel.org>, <openbmc@...ts.ozlabs.org>,
<linux-arm-kernel@...ts.infradead.org>,
<linux-aspeed@...ts.ozlabs.org>, <linux-kernel@...r.kernel.org>
CC: <joel@....id.au>, <andrew@...id.au>
Subject: [PATCH v2] media: aspeed: Fix return value check in aspeed_video_debugfs_create()
In case of error, the function debugfs_create_file() returns ERR_PTR()
and never returns NULL. The NULL test in the return value check
should be replaced with IS_ERR().
Fixes: 52fed10ad756 ("media: aspeed: add debugfs")
Signed-off-by: Zheng Yongjun <zhengyongjun3@...wei.com>
---
v2:
- change return error code from ERR_PTR to PTR_ERR.
drivers/media/platform/aspeed/aspeed-video.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/media/platform/aspeed/aspeed-video.c b/drivers/media/platform/aspeed/aspeed-video.c
index 20f795ccc11b..0113e6bc836f 100644
--- a/drivers/media/platform/aspeed/aspeed-video.c
+++ b/drivers/media/platform/aspeed/aspeed-video.c
@@ -1780,10 +1780,12 @@ static int aspeed_video_debugfs_create(struct aspeed_video *video)
debugfs_entry = debugfs_create_file(DEVICE_NAME, 0444, NULL,
video,
&aspeed_video_debugfs_ops);
- if (!debugfs_entry)
+ if (IS_ERR(debugfs_entry)) {
aspeed_video_debugfs_remove(video);
+ return PTR_ERR(debugfs_entry);
+ }
- return !debugfs_entry ? -EIO : 0;
+ return 0;
}
#else
static void aspeed_video_debugfs_remove(struct aspeed_video *video) { }
--
2.17.1
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