Commit 665e2245 authored Aug 23, 2016 by Dexuan Cui Committed by Bjorn Helgaas Sep 06, 2016

PCI: hv: Handle vmbus_sendpacket() failure in hv_compose_msi_msg()



Handle vmbus_sendpacket() failure in hv_compose_msi_msg().

I happened to find this when reading the code.  I didn't get a real issue
however.

Signed-off-by: Dexuan Cui <decui@microsoft.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: KY Srinivasan <kys@microsoft.com>
CC: Jake Oshins <jakeo@microsoft.com>
CC: Haiyang Zhang <haiyangz@microsoft.com>
CC: Vitaly Kuznetsov <vkuznets@redhat.com>

parent 617ceb62

drivers/pci/host/pci-hyperv.c

+4 −2

Original line number	Diff line number	Diff line
		@@ -895,7 +895,9 @@ static void hv_compose_msi_msg(struct irq_data data, struct msi_msg msg)
		sizeof(*int_pkt), (unsigned long)&ctxt.pkt,
		VM_PKT_DATA_INBAND,
		VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED);
		if (!ret)
		if (ret)
		goto free_int_desc;

		wait_for_completion(&comp.comp_pkt.host_event);

		if (comp.comp_pkt.completion_status < 0) {