RDMA/bnxt_re: Fix error handling in probe failure path

During bnxt_re_dev_init(), when bnxt_re_setup_chip_ctx() fails unregister
with L2 first before bailing out probe.

Fixes: ae8637e ("RDMA/bnxt_re: Add chip context to identify 57500 series")
Link: https://lore.kernel.org/r/1691642677-21369-3-git-send-email-selvin.xavier@broadcom.com
Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

drivers/infiniband/hw/bnxt_re/main.c

@@ -1253,6 +1253,8 @@ static int bnxt_re_dev_init(struct bnxt_re_dev *rdev, u8 wqe_mode)
 
 	rc = bnxt_re_setup_chip_ctx(rdev, wqe_mode);
 	if (rc) {
+		bnxt_unregister_dev(rdev->en_dev);
+		clear_bit(BNXT_RE_FLAG_NETDEV_REGISTERED, &rdev->flags);
 		ibdev_err(&rdev->ibdev, "Failed to get chip context\n");
 		return -EINVAL;
 	}