HID: logitech: don't use stack based dj_report structures
authorMarc Dionne <marc.c.dionne@gmail.com>
Fri, 1 Jun 2012 22:12:14 +0000 (18:12 -0400)
committerJiri Kosina <jkosina@suse.cz>
Sun, 3 Jun 2012 13:11:43 +0000 (15:11 +0200)
commitd8dc3494f77a5cc3b274bae36f7e74e85cf8a407
tree46cb68c89091aa4dc07d95d205d809f7265fbd54
parent3c2c4b73aa79e4a1b601710b59e092441175f4bb
HID: logitech: don't use stack based dj_report structures

On a system with a logitech wireless keyboard/mouse and DMA-API debugging
enabled, this warning appears at boot:

kernel: WARNING: at lib/dma-debug.c:929 check_for_stack.part.12+0x70/0xa7()
kernel: Hardware name: MS-7593
kernel: uhci_hcd 0000:00:1d.1: DMA-API: device driver maps memory fromstack [addr=ffff8801b0079c29]

Make logi_dj_recv_query_paired_devices and logi_dj_recv_switch_to_dj_mode
use a structure allocated with kzalloc rather than a stack based one.

Signed-off-by: Marc Dionne <marc.c.dionne@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
drivers/hid/hid-logitech-dj.c