linux-kernel - [PATCH 1/1] debugfs: use IS

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Date:   Thu, 2 Sep 2021 12:29:17 +0200
From:   Nirmoy Das <nirmoy.das@....com>
To:     <rafael@...nel.org>
CC:     <linux-kernel@...r.kernel.org>, <gregkh@...uxfoundation.org>,
        <Christian.Koenig@....com>, Nirmoy Das <nirmoy.das@....com>
Subject: [PATCH 1/1] debugfs: use IS_ERR to check for error

debugfs_create_file() returns encoded error so
use IS_ERR for checking return value.

References: https://gitlab.freedesktop.org/drm/amd/-/issues/1686
Signed-off-by: Nirmoy Das <nirmoy.das@....com>
---
 fs/debugfs/inode.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c
index 8129a430d789..2f117c57160d 100644
--- a/fs/debugfs/inode.c
+++ b/fs/debugfs/inode.c
@@ -528,7 +528,7 @@ void debugfs_create_file_size(const char *name, umode_t mode,
 {
 	struct dentry *de = debugfs_create_file(name, mode, parent, data, fops);
 
-	if (de)
+	if (!IS_ERR(de))
 		d_inode(de)->i_size = file_size;
 }
 EXPORT_SYMBOL_GPL(debugfs_create_file_size);
-- 
2.32.0