[PATCH 0/7] Input: fix USB alsetting bugs

From: Johan Hovold
Date: Tue Dec 10 2019 - 06:37:52 EST

We had quite a few driver using the first alternate setting instead of
the current one when doing descriptor sanity checks. This is mostly an
issue on kernels with panic_on_warn set due to a WARN() in
usb_submit_urn(). Since we've started backporting such fixes (e.g. as
reported by syzbot), I've marked these for stable as well.

Included are also a couple of related clean ups to prevent future


Johan Hovold (7):
Input: pegasus_notetaker: fix endpoint sanity check
Input: aiptek: fix endpoint sanity check
Input: aiptek: use descriptors of current altsetting
Input: gtco: fix endpoint sanity check
Input: gtco: fix extra-descriptor debug message
Input: gtco: drop redundant variable reinit
Input: sur40: fix interface sanity checks

drivers/input/tablet/aiptek.c | 8 ++++----
drivers/input/tablet/gtco.c | 13 ++++---------
drivers/input/tablet/pegasus_notetaker.c | 2 +-
drivers/input/touchscreen/sur40.c | 2 +-
4 files changed, 10 insertions(+), 15 deletions(-)