bus/pci: check VFIO reset ioctl error

Check return value of device reset ioctl

Coverity issue: 195003
Fixes: 33604c31354a ("vfio: refactor PCI BAR mapping")

Signed-off-by: Jonas Pfefferle <jpf@zurich.ibm.com>
Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>

diff --git a/drivers/bus/pci/linux/pci_vfio.c b/drivers/bus/pci/linux/pci_vfio.c
index 1a3c308..360eed3 100644 (file)
--- a/drivers/bus/pci/linux/pci_vfio.c
+++ b/drivers/bus/pci/linux/pci_vfio.c
@@ -339,7 +339,11 @@ pci_vfio_setup_device(struct rte_pci_device *dev, int vfio_dev_fd)
        }
 
        /* Reset the device */
-       ioctl(vfio_dev_fd, VFIO_DEVICE_RESET);
+       if (ioctl(vfio_dev_fd, VFIO_DEVICE_RESET)) {
+               RTE_LOG(ERR, EAL, "Unable to reset device! Error: %d (%s)\n",
+                               errno, strerror(errno));
+               return -1;
+       }
 
        return 0;
 }