RDMA/rtrs-clt: Fix the initial value of min_latency

The type of min_latency is ktime_t, so use KTIME_MAX to initialize the
initial value.

Fixes: dc3b66a0ce70 ("RDMA/rtrs-clt: Add a minimum latency multipath policy")
Link: https://lore.kernel.org/r/20211124081040.19533-1-jinpu.wang@ionos.com
Signed-off-by: Jack Wang <jinpu.wang@ionos.com>
Reviewed-by: Guoqing Jiang <Guoqing.Jiang@linux.dev>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
diff --git a/drivers/infiniband/ulp/rtrs/rtrs-clt.c b/drivers/infiniband/ulp/rtrs/rtrs-clt.c
index 15c0077..e39709d 100644
--- a/drivers/infiniband/ulp/rtrs/rtrs-clt.c
+++ b/drivers/infiniband/ulp/rtrs/rtrs-clt.c
@@ -867,7 +867,7 @@ static struct rtrs_clt_sess *get_next_path_min_latency(struct path_it *it)
 	struct rtrs_clt_sess *min_path = NULL;
 	struct rtrs_clt *clt = it->clt;
 	struct rtrs_clt_sess *sess;
-	ktime_t min_latency = INT_MAX;
+	ktime_t min_latency = KTIME_MAX;
 	ktime_t latency;
 
 	list_for_each_entry_rcu(sess, &clt->paths_list, s.entry) {