]> git.baikalelectronics.ru Git - kernel.git/commit
net: usb: kaweth: use irqsave() in USB's complete callback
authorSebastian Andrzej Siewior <bigeasy@linutronix.de>
Wed, 20 Jun 2018 19:31:19 +0000 (21:31 +0200)
committerDavid S. Miller <davem@davemloft.net>
Fri, 22 Jun 2018 04:57:45 +0000 (13:57 +0900)
commit4a5ade9f812c3272457f349618e38e3d44fbed0e
treee888c65b03ecd00ab3f309676337b0066a822194
parent49b183f93b27f2eaacc4b154adac2bd162ade80f
net: usb: kaweth: 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: "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/kaweth.c