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devpts: Make devpts_kill_sb safe if fsi is NULL

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Signed-off-by: "Eric W. Biederman" <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
Eric W. Biederman 2016-09-14 13:53:36 -05:00 • committed by Greg Kroah-Hartman
commit 40b320e1c7
1 changed files with 2 additions and 1 deletions
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3
fs/devpts/inode.c
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@ -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);
}