linux-kernel - [PATCH 3/4] random: fix an incorrect __user annotation on proc_do

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Message-Id: <20200603055237.677416-4-hch@lst.de>
Date:   Wed,  3 Jun 2020 07:52:36 +0200
From:   Christoph Hellwig <hch@....de>
To:     Alexander Viro <viro@...iv.linux.org.uk>
Cc:     Luis Chamberlain <mcgrof@...nel.org>,
        Kees Cook <keescook@...omium.org>,
        Iurii Zaikin <yzaikin@...gle.com>,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        build test robot <lkp@...el.com>
Subject: [PATCH 3/4] random: fix an incorrect __user annotation on proc_do_entropy

No user pointers for sysctls anymore.

Fixes: 32927393dc1c ("sysctl: pass kernel pointers to ->proc_handler")
Reported-by: build test robot <lkp@...el.com>
Signed-off-by: Christoph Hellwig <hch@....de>
---
 drivers/char/random.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/char/random.c b/drivers/char/random.c
index 1e0db78b83baa..cf8a43f5eb2a0 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -2087,7 +2087,7 @@ static int proc_do_uuid(struct ctl_table *table, int write,
  * Return entropy available scaled to integral bits
  */
 static int proc_do_entropy(struct ctl_table *table, int write,
-			   void __user *buffer, size_t *lenp, loff_t *ppos)
+			   void *buffer, size_t *lenp, loff_t *ppos)
 {
 	struct ctl_table fake_table;
 	int entropy_count;
-- 
2.26.2