IB/ipoib: Replace list_del of the neigh->list with list_del_init
In order to resolve a situation where a few process delete the same list element in sequence and cause panic, list_del is replaced with list_del_init. In this case if the first process that calls list_del releases the lock before acquiring it again, other processes who can acquire the lock will call list_del_init. Fixes: b63b70d8 ("IPoIB: Use a private hash table for path lookup") Signed-off-by: NFeras Daoud <ferasda@mellanox.com> Signed-off-by: NErez Shitrit <erezsh@mellanox.com> Reviewed-by: NAlex Vesker <valex@mellanox.com> Signed-off-by: NLeon Romanovsky <leon@kernel.org> Reviewed-by: NYuval Shaia <yuval.shaia@oracle.com> Signed-off-by: NDoug Ledford <dledford@redhat.com>
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