diff options
author | Jussi Kivilinna <jussi.kivilinna@mbnet.fi> | 2013-02-18 10:29:30 +0200 |
---|---|---|
committer | John W. Linville <linville@tuxdriver.com> | 2013-02-18 15:30:40 -0500 |
commit | bc6b89237acb3dee6af6e64e51a18255fef89cc2 (patch) | |
tree | 7a9d124856f3e1792c6e2272ad6c1464e3ffc705 /drivers/net/wireless/orinoco/orinoco_usb.c | |
parent | a5f390562a375a315292648e2da865a12b42f280 (diff) |
rtlwifi: usb: allocate URB control message setup_packet and data buffer separately
rtlwifi allocates both setup_packet and data buffer of control message urb,
using shared kmalloc in _usbctrl_vendorreq_async_write. Structure used for
allocating is:
struct {
u8 data[254];
struct usb_ctrlrequest dr;
};
Because 'struct usb_ctrlrequest' is __packed, setup packet is unaligned and
DMA mapping of both 'data' and 'dr' confuses ARM/sunxi, leading to memory
corruptions and freezes.
Patch changes setup packet to be allocated separately.
[v2]:
- Use WARN_ON_ONCE instead of WARN_ON
Cc: <stable@vger.kernel.org>
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/orinoco/orinoco_usb.c')
0 files changed, 0 insertions, 0 deletions