forked from luck/tmp_suning_uos_patched
target/iscsi: Fix op=disable + error handling cases in np_store_iser
Writing 0 when iser was not previously enabled, so succeed but do nothing so that user-space code doesn't need a try: catch block when ib_isert logic is not available. Also, return actual error from add_network_portal using PTR_ERR during op=enable failure. Signed-off-by: Andy Grover <agrover@redhat.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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b5aff3d274
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@ -155,7 +155,7 @@ static ssize_t lio_target_np_store_iser(
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struct iscsi_tpg_np *tpg_np_iser = NULL;
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char *endptr;
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u32 op;
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int rc;
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int rc = 0;
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op = simple_strtoul(page, &endptr, 0);
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if ((op != 1) && (op != 0)) {
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@ -174,22 +174,25 @@ static ssize_t lio_target_np_store_iser(
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return -EINVAL;
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if (op) {
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int rc = request_module("ib_isert");
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if (rc != 0)
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rc = request_module("ib_isert");
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if (rc != 0) {
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pr_warn("Unable to request_module for ib_isert\n");
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rc = 0;
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}
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tpg_np_iser = iscsit_tpg_add_network_portal(tpg, &np->np_sockaddr,
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np->np_ip, tpg_np, ISCSI_INFINIBAND);
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if (!tpg_np_iser || IS_ERR(tpg_np_iser))
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if (IS_ERR(tpg_np_iser)) {
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rc = PTR_ERR(tpg_np_iser);
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goto out;
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}
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} else {
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tpg_np_iser = iscsit_tpg_locate_child_np(tpg_np, ISCSI_INFINIBAND);
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if (!tpg_np_iser)
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goto out;
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rc = iscsit_tpg_del_network_portal(tpg, tpg_np_iser);
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if (rc < 0)
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goto out;
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if (tpg_np_iser) {
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rc = iscsit_tpg_del_network_portal(tpg, tpg_np_iser);
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if (rc < 0)
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goto out;
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}
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}
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printk("lio_target_np_store_iser() done, op: %d\n", op);
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@ -198,7 +201,7 @@ static ssize_t lio_target_np_store_iser(
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return count;
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out:
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iscsit_put_tpg(tpg);
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return -EINVAL;
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return rc;
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}
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TF_NP_BASE_ATTR(lio_target, iser, S_IRUGO | S_IWUSR);
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