From: Yang Ruibin <11162571@vivo.com>
Date: Wed, 21 Aug 2024 08:39:08 +0000 (-0400)
Subject: drivers:iio:Fix the NULL vs IS_ERR() bug for debugfs_create_dir()
X-Git-Tag: v6.12-rc1~39^2~37^2
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=c4b43d8336e52dce6d124e428aa3b71703e62647;p=thirdparty%2Fkernel%2Flinux.git

drivers:iio:Fix the NULL vs IS_ERR() bug for debugfs_create_dir()

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

Signed-off-by: Yang Ruibin <11162571@vivo.com>
Link: https://patch.msgid.link/20240821083911.3411-1-11162571@vivo.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
---

diff --git a/drivers/iio/industrialio-backend.c b/drivers/iio/industrialio-backend.c
index a52a6b61c8b57..20b3b5212da76 100644
--- a/drivers/iio/industrialio-backend.c
+++ b/drivers/iio/industrialio-backend.c
@@ -219,7 +219,7 @@ void iio_backend_debugfs_add(struct iio_backend *back,
 	snprintf(name, sizeof(name), "backend%d", back->idx);
 
 	back_d = debugfs_create_dir(name, d);
-	if (!back_d)
+	if (IS_ERR(back_d))
 		return;
 
 	if (back->ops->debugfs_reg_access)