Groups > linux.kernel > #1278532 > unrolled thread

[bug] mei_fasync() bogosity

Started by	Al Viro <viro@ZenIV.linux.org.uk>
First post	2015-11-27 05:30 +0100
Last post	2015-11-27 05:30 +0100
Articles	1 — 1 participant

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  [bug] mei_fasync() bogosity Al Viro <viro@ZenIV.linux.org.uk> - 2015-11-27 05:30 +0100

#1278532 — [bug] mei_fasync() bogosity

From	Al Viro <viro@ZenIV.linux.org.uk>
Date	2015-11-27 05:30 +0100
Subject	[bug] mei_fasync() bogosity
Message-ID	<qziPw-6lh-9@gated-at.bofh.it>

in "mei: implement fasync for event notification" a ->fasync() instance is
added as

static int mei_fasync(int fd, struct file *file, int band)
{

	struct mei_cl *cl = file->private_data;

	if (!mei_cl_is_connected(cl))
		return POLLERR;

	return fasync_helper(fd, file, band, &cl->ev_async);
}

Valid return values for ->fasync() are 0, 1 and -E...; 8 (aka POLLERR) is not.
What had been intended there?  -ENODEV?  Some other error?  As it is, the
thing is broken.
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[bug] mei_fasync() bogosity

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#1278532 — [bug] mei_fasync() bogosity