• Sebastian Andrzej Siewior's avatar
    ath9k: use irqsave() in USB's complete callback · 84a0d466
    Sebastian Andrzej Siewior authored
    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: QCA ath9k Development <ath9k-devel@qca.qualcomm.com>
    Cc: Kalle Valo <kvalo@codeaurora.org>
    Cc: "David S. Miller" <davem@davemloft.net>
    Cc: linux-wireless@vger.kernel.org
    Signed-off-by: default avatarSebastian Andrzej Siewior <bigeasy@linutronix.de>
    Signed-off-by: default avatarKalle Valo <kvalo@codeaurora.org>
    84a0d466
wmi.c 8.87 KB