From: Yang Ruibin <11162571@vivo.com>
Date: Wed, 21 Aug 2024 07:34:40 +0000 (-0400)
Subject: lib: fix the NULL vs IS_ERR() bug for debugfs_create_dir()
X-Git-Tag: v6.12-rc1~114^2~28
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=38676d9e33133c0c39951b812b19cc5b9ff1978a;p=thirdparty%2Fkernel%2Flinux.git

lib: fix the NULL vs IS_ERR() bug for debugfs_create_dir()

debugfs_create_dir() returns error pointers.  It never returns NULL.  So
use IS_ERR() to check it.

Link: https://lkml.kernel.org/r/20240821073441.9701-1-11162571@vivo.com
Signed-off-by: Yang Ruibin <11162571@vivo.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

diff --git a/lib/test_fpu_glue.c b/lib/test_fpu_glue.c
index 074f30301f299..c0596426370a4 100644
--- a/lib/test_fpu_glue.c
+++ b/lib/test_fpu_glue.c
@@ -42,7 +42,7 @@ static int __init test_fpu_init(void)
 		return -EINVAL;
 
 	selftest_dir = debugfs_create_dir("selftest_helpers", NULL);
-	if (!selftest_dir)
+	if (IS_ERR(selftest_dir))
 		return -ENOMEM;
 
 	debugfs_create_file_unsafe("test_fpu", 0444, selftest_dir, NULL,