linux-kernel - [PATCH v2 4/4] chardev: update comment based on the code

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Message-Id: <20190215122714.28842-4-cgxu519@gmx.com>
Date:   Fri, 15 Feb 2019 20:27:14 +0800
From:   Chengguang Xu <cgxu519@....com>
To:     gregkh@...uxfoundation.org
Cc:     viro@...iv.linux.org.uk, linux-kernel@...r.kernel.org,
        Chengguang Xu <cgxu519@....com>
Subject: [PATCH v2 4/4] chardev: update comment based on the code

The function comment of __register_chrdev_region()
is out of date, so update it based on the code.

Signed-off-by: Chengguang Xu <cgxu519@....com>
---
v1->v2:
- Split fix and cleanup patches.
- Remove printing minor range in chrdev_show().

 fs/char_dev.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/fs/char_dev.c b/fs/char_dev.c
index bd2bf1fd847e..d18cad28c1c3 100644
--- a/fs/char_dev.c
+++ b/fs/char_dev.c
@@ -88,13 +88,10 @@ static int find_dynamic_major(void)
 /*
  * Register a single major with a specified minor range.
  *
- * If major == 0 this functions will dynamically allocate a major and return
- * its number.
- *
- * If major > 0 this function will attempt to reserve the passed range of
- * minors and will return zero on success.
+ * If major == 0 this function will dynamically allocate an unused major.
+ * If major > 0 this function will attempt to reserve the range of minors
+ * with given major.
  *
- * Returns a -ve errno on failure.
  */
 static struct char_device_struct *
 __register_chrdev_region(unsigned int major, unsigned int baseminor,
-- 
2.20.1