linux-kernel - [PATCH] -EINVAL if no fasync op for file

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Message-ID: <471728F7.6020809@dev.rtsoft.ru>
Date:	Thu, 18 Oct 2007 13:35:51 +0400
From:	Dmitry Antipov <antipov@....rtsoft.ru>
To:	linux-kernel@...r.kernel.org
Subject: [PATCH] -EINVAL if no fasync op for file

This patch proposes an additional error checking performed within setfl().

As a result, fcntl (fd, F_SETFL, O_ASYNC) will return -1 and set errno
to -EINVAL if filp->f_op->fasync is NULL for file specified by fd. This
is possible, for example, if fd is a descriptor returned by inotify_init().

Dmitry

View attachment "2.6.23-fcntl-fasync-check.patch" of type "text/x-patch" (353 bytes)