From: Nirmoy Das <nirmoy.das@amd.com>
Date: Thu, 2 Sep 2021 10:29:17 +0000 (+0200)
Subject: debugfs: debugfs_create_file_size(): use IS_ERR to check for error
X-Git-Tag: v5.10.79~468
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=3bef1b7242e0a344177ba95ddafb3d2c67693ab2;p=platform%2Fkernel%2Flinux-rpi.git

debugfs: debugfs_create_file_size(): use IS_ERR to check for error

commit af505cad9567f7a500d34bf183696d570d7f6810 upstream.

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

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Nirmoy Das <nirmoy.das@amd.com>
Fixes: ff9fb72bc077 ("debugfs: return error values, not NULL")
Cc: stable <stable@vger.kernel.org>
References: https://gitlab.freedesktop.org/drm/amd/-/issues/1686
Link: https://lore.kernel.org/r/20210902102917.2233-1-nirmoy.das@amd.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c
index 720d65f..848e0aa 100644
--- a/fs/debugfs/inode.c
+++ b/fs/debugfs/inode.c
@@ -524,7 +524,7 @@ 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);