linux_dsm_epyc7002/drivers/usb/class
Sebastian Andrzej Siewior 579b9cca2b usb: cdc-wdm: 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: Oliver Neukum <oneukum@suse.com>
Cc: "Bjørn Mork" <bjorn@mork.no>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-06-28 19:36:07 +09:00
..
cdc-acm.c usb: cdc-acm: use irqsave() in USB's complete callback 2018-06-28 19:36:06 +09:00
cdc-acm.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
cdc-wdm.c usb: cdc-wdm: use irqsave() in USB's complete callback 2018-06-28 19:36:07 +09:00
Kconfig usb: fix some references for /proc/bus/usb 2017-04-18 16:54:19 +02:00
Makefile USB: add SPDX identifiers to all remaining Makefiles 2017-11-07 15:53:48 +01:00
usblp.c usb: usblp: use irqsave() in USB's complete callback 2018-06-28 19:36:06 +09:00
usbtmc.c usb: usbtmc: Remove rigol_quirk 2018-05-18 15:56:40 +02:00