Commit 846df244 authored Sep 30, 2017 by Dan Carpenter Committed by Greg Kroah-Hartman Oct 04, 2017

misc: pci_endpoint_test: Avoid triggering a BUG()



If you call ida_simple_remove(&pci_endpoint_test_ida, id) with a
negative "id" then it triggers an immediate BUG_ON().  Let's not allow
that.

Fixes: 2c156ac7 ("misc: Add host side PCI driver for PCI test function device")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 378f79ca

drivers/misc/pci_endpoint_test.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -597,6 +597,8 @@ static void pci_endpoint_test_remove(struct pci_dev *pdev)

		if (sscanf(misc_device->name, DRV_MODULE_NAME ".%d", &id) != 1)
		return;
		if (id < 0)
		return;

		misc_deregister(&test->miscdev);
		ida_simple_remove(&pci_endpoint_test_ida, id);