ad3c5412f2
Can happen with usb-storage devices: ehci_work_bh calls usb-storage, usb-storage calls into block layer, block layer may run BHs. Add a simple bool and just do nothing in case we figure ehci_work_bh is active. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Message-id: 20170612073109.25930-1-kraxel@redhat.com