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From: "Randy.Dunlap" <rddunlap@osdl.org>
To: Miles Bader <miles@gnu.org>
Cc: miles@lsi.nec.co.jp, linux-kernel@vger.kernel.org
Subject: Re: initcall ordering of driver w/respect to tty_init?
Date: Fri, 10 Oct 2003 08:02:12 -0700	[thread overview]
Message-ID: <20031010080212.6ddb02ff.rddunlap@osdl.org> (raw)
In-Reply-To: <buo65j0f9vi.fsf@mcspd15.ucom.lsi.nec.co.jp>

On 08 Oct 2003 16:48:17 +0900 Miles Bader <miles@lsi.nec.co.jp> wrote:

| I have a tty driver, arch/v850/kernel/simcons.c, who's init function is
| called via __initcall:
| 
|    int __init simcons_tty_init (void)
|    {
|            struct tty_driver *driver = alloc_tty_driver(1);
|    ...
|            err = tty_register_driver(driver);
|    }
|    __initcall (simcons_tty_init);
| 
| I'm getting errors because this init function is being called _before_
| tty_init, and tty_kobj (which is the `parent' kobj of simcon's kobj) is
| apparently not setup correctly yet when the simcons_tty_init calls
| tty_register_driver.
| 
| Since there seems to be no way of ordering basic initcalls, I can see
| why it's happening.  But what's the proper way to avoid this?  Other
| tty drivers that call tty_register_driver also seem to get initialized
| via initcalls (usually declared with module_init), so maybe this
| problem exists for other drivers too.

Does it help/work to change it to a console_initcall() ?

--
~Randy

  reply	other threads:[~2003-10-10 15:11 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-10-08  7:48 initcall ordering of driver w/respect to tty_init? Miles Bader
2003-10-10 15:02 ` Randy.Dunlap [this message]
2003-10-10 18:12   ` Miles Bader
2003-10-14  2:12     ` Miles Bader

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