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authorEric W. Biederman <ebiederm@xmission.com>2016-09-14 13:53:36 -0500
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-09-23 11:31:31 +0200
commit40b320e1c757353d65550471132683dfb6c35e0f (patch)
tree41d660ac1ec8d3192189db2e12c56c57f701593e /fs/devpts
parentc1b241f0c1cfdba6ad90afd5036fa60781bbc363 (diff)
downloadlinux-40b320e1c757353d65550471132683dfb6c35e0f.tar.bz2
devpts: Make devpts_kill_sb safe if fsi is NULL
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs/devpts')
-rw-r--r--fs/devpts/inode.c3
1 files changed, 2 insertions, 1 deletions
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);
}