pty: Fix allocation failure double free
Alan Cox [Mon, 13 Oct 2008 09:43:48 +0000 (10:43 +0100)]
The updating and moving around of the pty code added a bug where both the
helper and caller free the main tty struct (the pty driver must free the
o_tty pair itself however).

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/char/pty.c

index c3ab8c3..3c6b791 100644 (file)
@@ -544,8 +544,6 @@ free_mem_out:
        module_put(o_tty->driver->owner);
        free_tty_struct(o_tty);
        pty_unix98_shutdown(tty);
-       free_tty_struct(tty);
-       module_put(driver->owner);
        return -ENOMEM;
 }