HID: cp2112: fix sleep-while-atomic

A recent commit fixing DMA-buffers on stack added a shared transfer
buffer protected by a spinlock. This is broken as the USB HID request
callbacks can sleep. Fix this up by replacing the spinlock with a mutex.

Fixes: 1ffb3c40ffb5 ("HID: cp2112: make transfer buffers DMA capable")
Cc: stable <stable@vger.kernel.org>	# 4.9
Signed-off-by: Johan Hovold <johan@kernel.org>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

path: root/curvetun/Makefile

curvetun-libs =	-lnacl \
		-lpthread

curvetun-objs =	xmalloc.o \
		xio.o \
		xutils.o \
		stun.o \
		patricia.o \
		trie.o \
		hash.o \
		curve.o \
		cpusched.o \
		ct_usermgmt.o \
		ct_servmgmt.o \
		ct_server.o \
		ct_client.o \
		curvetun.o