vfs: simple_set_mnt() should return void

simple_set_mnt() is defined as returning 'int' but always returns 0.
Callers assume simple_set_mnt() never fails and don't properly cleanup if
it were to _ever_ fail.  For instance, get_sb_single() and get_sb_nodev()
should:

        up_write(sb->s_unmount);
        deactivate_super(sb);

if simple_set_mnt() fails.

Since simple_set_mnt() never fails, would be cleaner if it did not
return anything.

[[email protected]: fix build]
Signed-off-by: Sukadev Bhattiprolu <[email protected]>
Acked-by: Serge Hallyn <[email protected]>
Cc: Al Viro <[email protected]>
Cc: Christoph Hellwig <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Al Viro <[email protected]>
This commit is contained in:
Sukadev Bhattiprolu 2009-03-04 12:06:34 -08:00 • committed by Al Viro
commit a3ec947c85
11 changed files with 28 additions and 16 deletions

View file

@ -83,7 +83,8 @@ static int proc_get_sb(struct file_system_type *fs_type,
ns->proc_mnt = mnt;
}
return simple_set_mnt(mnt, sb);
simple_set_mnt(mnt, sb);
return 0;
}
static void proc_kill_sb(struct super_block *sb)