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Anonymous inode cleanup?

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Hello,

I'm writing a module that wants to get anonymous fd [using
anon_inode_getfd()] and my code looks like this:

fd = anon_inode_getfd(...)
if (fd < 0)
    return -EINVAL;

if (foobar_fail()) {
    /* undo everything */
    return -EINVAL;
}

My question is that in case of a failure after the anon_inode_getfd(),
I want to cleanup and undo whatever needs to be done w.r.t. anodnymous
fd I just allocated. (May be put a reference, or return the fd to the
free pool or whatever). Can some one please let me know what cleanup
needs to be done?

However neither I see a cleanup function, nor I see any of the drivers
attempting
to free the fd in case of failure.

Thanks,

Thanks,

Rajat
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Thread

Anonymous inode cleanup? Rajat Jain <rajatxjain@gmail.com> - 2015-11-13 06:50 +0100
  Re: Anonymous inode cleanup? Mateusz Guzik <mguzik@redhat.com> - 2015-11-13 07:00 +0100
  Re: Anonymous inode cleanup? Al Viro <viro@ZenIV.linux.org.uk> - 2015-11-13 07:40 +0100

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