From: David Daney <ddaney@avtrex.com>
To: linux-kernel@vger.kernel.org
Subject: -NODEV vs. -ENODEV
Date: Tue, 25 May 2004 16:54:52 -0700 [thread overview]
Message-ID: <40B3DCCC.5040401@avtrex.com> (raw)
While working on a driver that is not part of the standard kernel
sources, I found that dev_open() was returning -NODEV when there was no
device (instead of -ENODEV).
Since NODEV is #defined to be 0 this caused open to erroneously report
success.
It seems to me that any place you see -NODEV in the kernel sources is
almost certainly an error.
Using the 2.4.25 sources from linux-mips.org I get the following:
$ grep -r -- -NODEV *
drivers/isdn/sc/command.c: return -NODEV;
drivers/media/video/cpia.c: return -NODEV;
drivers/net/defxx.c: int rc = -NODEV;
I have no idea if these still exist in the current sources, but I
suspect that they do.
David Daney
next reply other threads:[~2004-05-25 23:55 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-05-25 23:54 David Daney [this message]
2004-05-26 5:12 ` -NODEV vs. -ENODEV David S. Miller
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