xfs: fix NULL pointer dereference in xfs_filestream_lookup_ag()

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If xfs_filestream_get_parent() fails, we have a null pip,
goto out, and attempt to IRELE(NULL).  This causes a null
pointer dereference and BUG().

Fix this by directly returning NULLAGNUMBER in this case.

Reported-by: Adrien Nader <adrien@notk.org>
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>

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Eric Sandeen 2015-03-25 14:54:25 +11:00 • committed by Dave Chinner

parent d64588ca28

commit b26384dc52

1 changed files with 1 additions and 1 deletions

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fs/xfs/xfs_filestream.c

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