RDMA/cxgb3: Clean up properly on FW mismatch failures
FW mismatches can cause a crash in the iw_cxgb3 event handler. - NULL the t3cdev->ulp pointer on failures in cxio_rdev_open() - Silently ignore events when the ulp ptr is NULL in iwch_err_handler() Signed-off-by: NSteve Wise <swise@opengridcomputing.com> Signed-off-by: NRoland Dreier <rolandd@cisco.com>
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