Upgrade to 4.4.50-rt62

[kvmfornfv.git] / kernel / drivers / char / ipmi / ipmi_msghandler.c

diff --git a/kernel/drivers/char/ipmi/ipmi_msghandler.c b/kernel/drivers/char/ipmi/ipmi_msghandler.c
index e3536da..a084a47 100644 (file)
--- a/kernel/drivers/char/ipmi/ipmi_msghandler.c
+++ b/kernel/drivers/char/ipmi/ipmi_msghandler.c
@@ -3819,6 +3819,7 @@ static void handle_new_recv_msgs(ipmi_smi_t intf)
        while (!list_empty(&intf->waiting_rcv_msgs)) {
                smi_msg = list_entry(intf->waiting_rcv_msgs.next,
                                     struct ipmi_smi_msg, link);
+               list_del(&smi_msg->link);
                if (!run_to_completion)
                        spin_unlock_irqrestore(&intf->waiting_rcv_msgs_lock,
                                               flags);
@@ -3828,11 +3829,14 @@ static void handle_new_recv_msgs(ipmi_smi_t intf)
                if (rv > 0) {
                        /*
                         * To preserve message order, quit if we
-                        * can't handle a message.
+                        * can't handle a message.  Add the message
+                        * back at the head, this is safe because this
+                        * tasklet is the only thing that pulls the
+                        * messages.
                         */
+                       list_add(&smi_msg->link, &intf->waiting_rcv_msgs);
                        break;
                } else {
-                       list_del(&smi_msg->link);
                        if (rv == 0)
                                /* Message handled */
                                ipmi_free_smi_msg(smi_msg);