[SCSI] bnx2i: Added mutex lock protection to conn_get_param
Added net_dev mutex lock protection before accessing the csk parameters. Signed-off-by: Eddie Wai <eddie.wai@broadcom.com> Reviewed-by: Benjamin Li <benli@broadcom.com> Reviewed-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
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@ -1461,21 +1461,28 @@ static int bnx2i_conn_get_param(struct iscsi_cls_conn *cls_conn,
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struct bnx2i_conn *bnx2i_conn = conn->dd_data;
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int len = 0;
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if (!(bnx2i_conn && bnx2i_conn->ep && bnx2i_conn->ep->hba))
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goto out;
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switch (param) {
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case ISCSI_PARAM_CONN_PORT:
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if (bnx2i_conn->ep)
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mutex_lock(&bnx2i_conn->ep->hba->net_dev_lock);
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if (bnx2i_conn->ep->cm_sk)
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len = sprintf(buf, "%hu\n",
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bnx2i_conn->ep->cm_sk->dst_port);
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mutex_unlock(&bnx2i_conn->ep->hba->net_dev_lock);
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break;
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case ISCSI_PARAM_CONN_ADDRESS:
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if (bnx2i_conn->ep)
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mutex_lock(&bnx2i_conn->ep->hba->net_dev_lock);
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if (bnx2i_conn->ep->cm_sk)
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len = sprintf(buf, "%pI4\n",
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&bnx2i_conn->ep->cm_sk->dst_ip);
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mutex_unlock(&bnx2i_conn->ep->hba->net_dev_lock);
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break;
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default:
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return iscsi_conn_get_param(cls_conn, param, buf);
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}
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out:
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return len;
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}
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