when the hot plug out of the device, the uio resource have been
invalid, so to avoid the system hung, no need to do the invalid
operation in igb_uio pci release function.
Signed-off-by: Jeff Guo <jia....@intel.com>
---
lib/librte_eal/linuxapp/igb_uio/igb_uio.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/lib/librte_eal/linuxapp/igb_uio/igb_uio.c
b/lib/librte_eal/linuxapp/igb_uio/igb_uio.c
index a3a98c1..d0e07b4 100644
--- a/lib/librte_eal/linuxapp/igb_uio/igb_uio.c
+++ b/lib/librte_eal/linuxapp/igb_uio/igb_uio.c
@@ -354,6 +354,12 @@ igbuio_pci_release(struct uio_info *info, struct inode
*inode)
struct rte_uio_pci_dev *udev = info->priv;
struct pci_dev *dev = udev->pdev;
+ /* check if device have been remove before release */
+ if ((&dev->dev.kobj)->state_remove_uevent_sent == 1) {
+ pr_info("The device have been removed\n");
+ return -1;
+ }
+
/* disable interrupts */
igbuio_pci_disable_interrupts(udev);
--
2.7.4
