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ib_srpt: Fix handling of iWARP logins

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The path_rec pointer is set for IB and RoCE logins but not for iWARP
logins. Hence check the path_rec pointer before dereferencing it.

See also upstream commit cbca2442a096 ("RDMA/srpt: Fix handling of iWARP
logins") # v5.5.



git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@8934 d57e44dd-8a1f-0410-8b47-8ef2f437770f
This commit is contained in:
Bart Van Assche
2020-05-17 21:02:43 +00:00
parent 5529400fd5
commit 21edb121be
1 changed files with 6 additions and 1 deletions
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7
srpt/src/ib_srpt.c
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@@ -3007,6 +3007,11 @@ static int srpt_rdma_cm_req_recv(struct rdma_cm_id *cm_id,
struct srpt_device *sdev;
struct srp_login_req req;
const struct srp_login_req_rdma *req_rdma;
/*
* See also commit c2f8fc4ec440 ("IB/SA: Rename ib_sa_path_rec to
* sa_path_rec") # v4.12.
*/
typeof(cm_id->route.path_rec) path_rec = cm_id->route.path_rec;
char src_addr[40];
sdev = ib_get_client_data(cm_id->device, &srpt_client);
@@ -3031,7 +3036,7 @@ static int srpt_rdma_cm_req_recv(struct rdma_cm_id *cm_id,
inet_ntop(&cm_id->route.addr.src_addr, src_addr, sizeof(src_addr));
return srpt_cm_req_recv(sdev, NULL, cm_id, cm_id->port_num,
cm_id->route.path_rec->pkey, &req, src_addr);
path_rec ? path_rec->pkey : 0, &req, src_addr);
}
static void srpt_cm_rej_recv(struct srpt_rdma_ch *ch,