linux-kernel - [PATCH] IPC: fix put_compat_shm

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Message-Id: <20170927003254.17604-1-ynorov@caviumnetworks.com>
Date:   Wed, 27 Sep 2017 03:32:54 +0300
From:   Yury Norov <ynorov@...iumnetworks.com>
To:     Andrew Morton <akpm@...ux-foundation.org>,
        Al Viro <viro@...iv.linux.org.uk>, linux-kernel@...r.kernel.org
Cc:     Yury Norov <ynorov@...iumnetworks.com>
Subject: [PATCH] IPC: fix put_compat_shm_info()

There's a typo in put_compat_shm_info() - the first argument
of copy_to_user() is 'up' instead of 'uip'. And 'up' is
occasionly a suitable variable name so the compiler doesn't
complain.

Signed-off-by: Yury Norov <ynorov@...iumnetworks.com>
---
 ipc/shm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ipc/shm.c b/ipc/shm.c
index 1e2b1692ba2c..badac463e2c8 100644
--- a/ipc/shm.c
+++ b/ipc/shm.c
@@ -1154,7 +1154,7 @@ static int put_compat_shm_info(struct shm_info *ip,
 	info.shm_swp = ip->shm_swp;
 	info.swap_attempts = ip->swap_attempts;
 	info.swap_successes = ip->swap_successes;
-	return copy_to_user(up, &info, sizeof(info));
+	return copy_to_user(uip, &info, sizeof(info));
 }
 
 static int copy_compat_shmid_to_user(void __user *buf, struct shmid64_ds *in,
-- 
2.11.0