linux/drivers/usb/class
Bjørn Mork 1944581699 USB: Revert "cdc-wdm: fix "out-of-sync" due to missing notifications"
This reverts commit 833415a3e7 ("cdc-wdm: fix "out-of-sync" due to
missing notifications")

There have been several reports of wdm_read returning unexpected EIO
errors with QMI devices using the qmi_wwan driver. The reporters
confirm that reverting prevents these errors. I have been unable to
reproduce the bug myself, and have no explanation to offer either. But
reverting is the safe choice here, given that the commit was an
attempt to work around a firmware problem.  Living with a firmware
problem is still better than adding driver bugs.

Reported-by: Kasper Holtze <kasper@holtze.dk>
Reported-by: Aleksander Morgado <aleksander@aleksander.es>
Reported-by: Daniele Palmas <dnlplm@gmail.com>
Cc: <stable@vger.kernel.org> # v4.9+
Fixes: 833415a3e7 ("cdc-wdm: fix "out-of-sync" due to missing notifications")
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Acked-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-25 20:04:28 +02:00
..
Kconfig usb: fix some references for /proc/bus/usb 2017-04-18 16:54:19 +02:00
Makefile USB: add USB test and measurement class driver 2008-10-17 14:40:51 -07:00
cdc-acm.c cdc-acm: log message for serial state notification 2017-04-01 11:05:03 +02:00
cdc-acm.h cdc-acm: remove unused element of struct acm 2017-04-01 11:05:03 +02:00
cdc-wdm.c USB: Revert "cdc-wdm: fix "out-of-sync" due to missing notifications" 2017-04-25 20:04:28 +02:00
usblp.c usb: fix some references for /proc/bus/usb 2017-04-18 16:54:19 +02:00
usbtmc.c USB: usbtmc: refactor endpoint retrieval 2017-03-29 11:53:15 +02:00