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HID: cp2112: make transfer buffers DMA capable
authorBenjamin Tissoires <benjamin.tissoires@redhat.com>
Mon, 21 Nov 2016 10:48:39 +0000 (11:48 +0100)
committerJiri Kosina <jkosina@suse.cz>
Wed, 23 Nov 2016 16:38:12 +0000 (17:38 +0100)
commit1ffb3c40ffb5c51bc39736409b11816c4260218e
tree68eff7671b986b67cbcbab2b5c9f7739be0228dctree | snapshot
parent4c4480aad0d8eaf0d52b6f2c8c5dfbe0531cbbeacommit | diff
HID: cp2112: make transfer buffers DMA capable

Kernel v4.9 strictly enforces DMA capable buffers, so we need to remove
buffers allocated on the stack.

Use a spinlock to prevent concurrent accesses to the buffer.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
drivers/hid/hid-cp2112.c diff | blob | history
ep93xx device tree rework repo: git://git.maquefel.me/linux.git