From: Jonathan Corbet <corbet@lwn.net>
Date: Sun, 1 Feb 2009 21:52:56 +0000 (-0700)
Subject: Rationalize fasync return values
X-Git-Tag: v2.6.30-rc1~654^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=60aa49243d09afc873f082567d2e3c16634ced84;p=pandora-kernel.git

Rationalize fasync return values

Most fasync implementations do something like:

     return fasync_helper(...);

But fasync_helper() will return a positive value at times - a feature used
in at least one place.  Thus, a number of other drivers do:

     err = fasync_helper(...);
     if (err < 0)
             return err;
     return 0;

In the interests of consistency and more concise code, it makes sense to
map positive return values onto zero where ->fasync() is called.

Cc: Al Viro <viro@ZenIV.linux.org.uk>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
---

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