aio: sanitize ki_list handling

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Instead of handcoded non-null checks always initialize ki_list to an
empty list and use list_empty / list_empty_careful on it.  While we're
at it also error out on a double call to kiocb_set_cancel_fn instead
of ignoring it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Jeff Moyer <jmoyer@redhat.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>

...

This commit is contained in:

Christoph Hellwig 2018-04-09 14:57:56 +02:00

parent c213dc826c

commit 75321b50a3

1 changed files with 6 additions and 7 deletions

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fs/aio.c

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