From ef47827ac4da5217243e1fec7ec75c1924eb4f40 Mon Sep 17 00:00:00 2001 From: Laszlo Ersek Date: Thu, 10 Apr 2014 10:24:44 +0200 Subject: pci-assign: propagate errors from assign_intx() Among the callers, only assigned_initfn() should set the monitor's stored error. Other callers may run in contexts where the monitor's stored error makes no sense. For example: assigned_dev_pci_write_config() assigned_dev_update_msix() assign_intx() Signed-off-by: Laszlo Ersek Reviewed-by: Eric Blake Signed-off-by: Luiz Capitulino --- hw/i386/kvm/pci-assign.c | 39 ++++++++++++++++++++++++++++----------- 1 file changed, 28 insertions(+), 11 deletions(-) (limited to 'hw') diff --git a/hw/i386/kvm/pci-assign.c b/hw/i386/kvm/pci-assign.c index 0fedca865..689172905 100644 --- a/hw/i386/kvm/pci-assign.c +++ b/hw/i386/kvm/pci-assign.c @@ -847,7 +847,7 @@ static void verify_irqchip_in_kernel(Error **errp) error_setg(errp, "pci-assign requires KVM with in-kernel irqchip enabled"); } -static int assign_intx(AssignedDevice *dev) +static int assign_intx(AssignedDevice *dev, Error **errp) { AssignedIRQType new_type; PCIINTxRoute intx_route; @@ -863,8 +863,7 @@ static int assign_intx(AssignedDevice *dev) verify_irqchip_in_kernel(&local_err); if (local_err) { - error_report("%s", error_get_pretty(local_err)); - error_free(local_err); + error_propagate(errp, local_err); return -ENOTSUP; } @@ -927,10 +926,11 @@ retry: dev->features |= ASSIGNED_DEVICE_PREFER_MSI_MASK; goto retry; } - error_report("Failed to assign irq for \"%s\": %s", - dev->dev.qdev.id, strerror(-r)); - error_report("Perhaps you are assigning a device " - "that shares an IRQ with another device?"); + error_setg_errno(errp, -r, + "Failed to assign irq for \"%s\"\n" + "Perhaps you are assigning a device " + "that shares an IRQ with another device?", + dev->dev.qdev.id); return r; } @@ -956,8 +956,11 @@ static void assigned_dev_update_irq_routing(PCIDevice *dev) Error *err = NULL; int r; - r = assign_intx(assigned_dev); + r = assign_intx(assigned_dev, &err); if (r < 0) { + error_report("%s", error_get_pretty(err)); + error_free(err); + err = NULL; qdev_unplug(&dev->qdev, &err); assert(!err); } @@ -1008,7 +1011,13 @@ static void assigned_dev_update_msi(PCIDevice *pci_dev) assigned_dev->intx_route.irq = -1; assigned_dev->assigned_irq_type = ASSIGNED_IRQ_MSI; } else { - assign_intx(assigned_dev); + Error *local_err = NULL; + + assign_intx(assigned_dev, &local_err); + if (local_err) { + error_report("%s", error_get_pretty(local_err)); + error_free(local_err); + } } } @@ -1150,7 +1159,13 @@ static void assigned_dev_update_msix(PCIDevice *pci_dev) assigned_dev->intx_route.irq = -1; assigned_dev->assigned_irq_type = ASSIGNED_IRQ_MSIX; } else { - assign_intx(assigned_dev); + Error *local_err = NULL; + + assign_intx(assigned_dev, &local_err); + if (local_err) { + error_report("%s", error_get_pretty(local_err)); + error_free(local_err); + } } } @@ -1819,8 +1834,10 @@ static int assigned_initfn(struct PCIDevice *pci_dev) } /* assign legacy INTx to the device */ - r = assign_intx(dev); + r = assign_intx(dev, &local_err); if (r < 0) { + qerror_report_err(local_err); + error_free(local_err); goto assigned_out; } -- cgit v1.2.3