diff mbox

[dpdk-dev,V8,2/3] igb_uio: fix device removal issuse for hotplug

Message ID 1515555037-9419-3-git-send-email-jia.guo@intel.com (mailing list archive)
State Superseded, archived
Delegated to: Thomas Monjalon
Headers

Checks

Context Check Description
ci/checkpatch success coding style OK
ci/Intel-compilation fail Compilation issues

Commit Message

Guo, Jia Jan. 10, 2018, 3:30 a.m. UTC 
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.guo@intel.com>
---
 lib/librte_eal/linuxapp/igb_uio/igb_uio.c | 6 ++++++
 1 file changed, 6 insertions(+)
diff mbox

Patch

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);