[PATCH tty-next 4/6] devpts: Make devpts_kill_sb safe if fsi is NULL

From	"Eric W. Biederman" <ebiederm@xmission.com>
Newsgroups	linux.kernel
Subject	[PATCH tty-next 4/6] devpts: Make devpts_kill_sb safe if fsi is NULL
Date	2016-09-14 21:10 +0200
Message-ID	<shnJg-4KO-3@gated-at.bofh.it> (permalink)
References	<shnJg-4KO-5@gated-at.bofh.it> <shnJg-4KO-7@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
---
 fs/devpts/inode.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/devpts/inode.c b/fs/devpts/inode.c
index a48b40b0bd1e..e058ec677207 100644
--- a/fs/devpts/inode.c
+++ b/fs/devpts/inode.c
@@ -458,7 +458,8 @@ static void devpts_kill_sb(struct super_block *sb)
 {
 	struct pts_fs_info *fsi = DEVPTS_SB(sb);
 
-	ida_destroy(&fsi->allocated_ptys);
+	if (fsi)
+		ida_destroy(&fsi->allocated_ptys);
 	kfree(fsi);
 	kill_litter_super(sb);
 }
-- 
2.8.3

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[PATCH tty-next 4/6] devpts: Make devpts_kill_sb safe if fsi is NULL "Eric W. Biederman" <ebiederm@xmission.com> - 2016-09-14 21:10 +0200

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