121ca39aa5
When setting up, qeth installs its IRQ handler on the ccw devices. But the IRQ handler is not cleared on removal - so even after qeth yields control of the ccw devices, spurious interrupts would still be presented to us. Make (de-)installation of the IRQ handler part of the ccw channel setup/removal helpers, and while at it also add the appropriate locking. Shift around qeth_setup_channel() to avoid a forward declaration for qeth_irq(). Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>