1 From a1020e16640e3b5d8cf32ef7d2914b788a1e06f6 Mon Sep 17 00:00:00 2001
2 From: Bud Grise <griseb@cisco.com>
3 Date: Tue, 2 Feb 2016 12:45:44 -0800
4 Subject: [PATCH 7/8] Fix a crash in igb_uio driver when the device is removed.
6 This crash happens because the device still has MSI configured,
7 the fix is to free the IRQ.
9 Signed-off-by: Todd Foggoa (tfoggoa) <tfoggoa@cisco.com>
11 lib/librte_eal/linuxapp/igb_uio/igb_uio.c | 7 +++++++
12 1 file changed, 7 insertions(+)
14 diff --git a/lib/librte_eal/linuxapp/igb_uio/igb_uio.c b/lib/librte_eal/linuxapp/igb_uio/igb_uio.c
15 index 72b2692..bf12391 100644
16 --- a/lib/librte_eal/linuxapp/igb_uio/igb_uio.c
17 +++ b/lib/librte_eal/linuxapp/igb_uio/igb_uio.c
18 @@ -506,8 +506,15 @@ static void
19 igbuio_pci_remove(struct pci_dev *dev)
21 struct rte_uio_pci_dev *udev = pci_get_drvdata(dev);
22 + struct uio_info *info = pci_get_drvdata(dev);
24 sysfs_remove_group(&dev->dev.kobj, &dev_attr_grp);
26 + if (info->irq && (info->irq != UIO_IRQ_CUSTOM)){
27 + free_irq(info->irq, info->uio_dev);
28 + info->irq = UIO_IRQ_NONE;
31 uio_unregister_device(&udev->info);
32 igbuio_pci_release_iomem(&udev->info);
33 if (udev->mode == RTE_INTR_MODE_MSIX)