IPoIB: Fix hang in ipoib_flush_paths()
ipoib_flush_paths() can hang during an SM up/down loop: if path_rec_start() fails (for instance, because there is no sm_ah), the path is still added to the path list by neigh_add_path(). Then, ipoib_flush_paths() will wait for path->done, but it will never complete because the request was not issued at all. Fix this by completing path->done if issuing the query fails. This fixes <https://bugs.openfabrics.org/show_bug.cgi?id=1329 >. Signed-off-by: Yossi Etigin <yosefe@voltaire.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
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