From: Jonas Pfefferle <jpf@zurich.ibm.com>
Date: Thu, 26 Oct 2017 15:19:49 +0000 (+0200)
Subject: bus/pci: check VFIO reset ioctl error
X-Git-Tag: spdx-start~1052
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=f25f8f367644;p=dpdk.git

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 1a3c308e7c..360eed3800 100644
--- 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;
 }