net: usb: rtl8150: use irqsave() in USB's complete callback
authorSebastian Andrzej Siewior <bigeasy@linutronix.de>
Wed, 20 Jun 2018 19:31:21 +0000 (21:31 +0200)
committerDavid S. Miller <davem@davemloft.net>
Fri, 22 Jun 2018 04:57:45 +0000 (13:57 +0900)
commitfeae641d2914e1559a29b9bf2e349578c3634b00
tree399eee4d28f7598d5ad59392bc86e7c70d94a4b6
parented7aa30e861510043f602b39f460c90aba792776
net: usb: rtl8150: use irqsave() in USB's complete callback

The USB completion callback does not disable interrupts while acquiring
the lock. We want to remove the local_irq_disable() invocation from
__usb_hcd_giveback_urb() and therefore it is required for the callback
handler to disable the interrupts while acquiring the lock.
The callback may be invoked either in IRQ or BH context depending on the
USB host controller.
Use the _irqsave() variant of the locking primitives.

Cc: Petko Manolov <petkan@nucleusys.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/usb/rtl8150.c