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| author | Josh Boyer <jwboyer@fedoraproject.org> | 2016-03-28 15:22:14 +0200 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2016-03-29 15:39:36 +0200 |
| commit | ea36ae09105b7688225c02d33f1f3213299360f6 (patch) | |
| tree | 0f26b91db057dc2fcc58acbeb327398d7ed250c6 /drivers/hid/wacom_wac.c | |
| parent | HID: usbhid: fix inconsistent reset/resume/reset-resume behavior (diff) | |
| download | linux-ea36ae09105b7688225c02d33f1f3213299360f6.tar.xz linux-ea36ae09105b7688225c02d33f1f3213299360f6.zip | |
HID: lenovo: Don't use stack variables for DMA buffers
The lenovo_send_cmd_cptkbd function uses a stack variable to submit
commands via hid_hw_raw_request. Eventually this gets to the
usb_hcd_map_urb_for_dma function, which causes a warning to be thrown
if the CONFIG_DMA_API_DEBUG option is enabled.
Fix this by allocating a temporary buffer instead.
[jkosina@suse.cz: no need to NULL-initialize buf, spotted by Benjamin]
Reported-by: lejeczek <peljasz@yahoo.co.uk>
Signed-off-by: Josh Boyer <jwboyer@fedoraproject.org>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid/wacom_wac.c')
0 files changed, 0 insertions, 0 deletions