linux/drivers/usb/class
Johan Hovold 020a1f4534 USB: usblp: fix DMA to stack
Stack-allocated buffers cannot be used for DMA (on all architectures).

Replace the HP-channel macro with a helper function that allocates a
dedicated transfer buffer so that it can continue to be used with
arguments from the stack.

Note that the buffer is cleared on allocation as usblp_ctrl_msg()
returns success also on short transfers (the buffer is only used for
debugging).

Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20210104145302.2087-1-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-04 16:51:35 +01:00
..
Kconfig treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
Makefile USB: add SPDX identifiers to all remaining Makefiles 2017-11-07 15:53:48 +01:00
cdc-acm.c USB: cdc-acm: blacklist another IR Droid device 2020-12-28 15:39:37 +01:00
cdc-acm.h usb: cdc-acm: fix cooldown mechanism 2020-10-28 13:20:21 +01:00
cdc-wdm.c USB: cdc-wdm: Fix use after free in service_outstanding_interrupt(). 2020-12-28 15:44:23 +01:00
usblp.c USB: usblp: fix DMA to stack 2021-01-04 16:51:35 +01:00
usbtmc.c usb: Use fallthrough pseudo-keyword 2020-07-10 08:55:17 +02:00