diff options
| author | Philippe Mathieu-Daudé <f4bug@amsat.org> | 2017-07-26 11:38:18 -0600 |
|---|---|---|
| committer | Alex Williamson <alex.williamson@redhat.com> | 2017-07-26 11:38:18 -0600 |
| commit | 96d2c2c57452f8b6bc3decae71435e7230f3432e (patch) | |
| tree | b346f5ddd658498080d5066932439d0e1876307e /hw | |
| parent | 418c69813f027cb1408aa2759022f5ca170a8c8c (diff) | |
vfio/pci: fix use of freed memory
hw/vfio/pci.c:308:29: warning: Use of memory after it is freed
qemu_set_fd_handler(*pfd, NULL, NULL, vdev);
^~~~
Reported-by: Clang Static Analyzer
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/vfio/pci.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c index d4051cb951..31e1edf447 100644 --- a/hw/vfio/pci.c +++ b/hw/vfio/pci.c @@ -257,7 +257,7 @@ static void vfio_intx_update(PCIDevice *pdev) static int vfio_intx_enable(VFIOPCIDevice *vdev, Error **errp) { uint8_t pin = vfio_pci_read_config(&vdev->pdev, PCI_INTERRUPT_PIN, 1); - int ret, argsz; + int ret, argsz, retval = 0; struct vfio_irq_set *irq_set; int32_t *pfd; Error *err = NULL; @@ -302,12 +302,12 @@ static int vfio_intx_enable(VFIOPCIDevice *vdev, Error **errp) qemu_set_fd_handler(*pfd, vfio_intx_interrupt, NULL, vdev); ret = ioctl(vdev->vbasedev.fd, VFIO_DEVICE_SET_IRQS, irq_set); - g_free(irq_set); if (ret) { error_setg_errno(errp, -ret, "failed to setup INTx fd"); qemu_set_fd_handler(*pfd, NULL, NULL, vdev); event_notifier_cleanup(&vdev->intx.interrupt); - return -errno; + retval = -errno; + goto cleanup; } vfio_intx_enable_kvm(vdev, &err); @@ -319,7 +319,10 @@ static int vfio_intx_enable(VFIOPCIDevice *vdev, Error **errp) trace_vfio_intx_enable(vdev->vbasedev.name); - return 0; +cleanup: + g_free(irq_set); + + return retval; } static void vfio_intx_disable(VFIOPCIDevice *vdev) |