linux/drivers/usb/gadget
Sergey Organov e4bfded56c usb: gadget: serial: fix Tx stall after buffer overflow
Symptom: application opens /dev/ttyGS0 and starts sending (writing) to
it while either USB cable is not connected, or nobody listens on the
other side of the cable. If driver circular buffer overflows before
connection is established, no data will be written to the USB layer
until/unless /dev/ttyGS0 is closed and re-opened again by the
application (the latter besides having no means of being notified about
the event of establishing of the connection.)

Fix: on open and/or connect, kick Tx to flush circular buffer data to
USB layer.

Signed-off-by: Sergey Organov <sorganov@gmail.com>
Reviewed-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
2020-02-11 08:45:45 +02:00
..
function usb: gadget: serial: fix Tx stall after buffer overflow 2020-02-11 08:45:45 +02:00
legacy usb: gadget: legacy: set max_speed to super-speed 2020-01-15 10:39:21 +01:00
udc USB/Thunderbolt/PHY driver updates for 5.6-rc1 2020-01-29 10:09:44 -08:00
composite.c usb: gadget: composite: Support more than 500mA MaxPower 2020-02-11 08:45:45 +02:00
config.c USB: gadget: Remove redundant license text 2017-11-07 15:45:02 +01:00
configfs.c usb: gadget: configfs: Add max_speed setting 2020-01-15 10:39:21 +01:00
configfs.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
epautoconf.c usb: gadget: move non-super speed code out of usb_ep_autoconfig_ss() 2019-02-07 13:14:51 +02:00
functions.c USB: add SPDX identifiers to all remaining files in drivers/usb/ 2017-11-04 11:48:02 +01:00
Kconfig usb: gadget: move choice ... endchoice to legacy/Kconfig 2019-12-17 16:24:13 +01:00
Makefile Revert "usb:gadget Separated decoding functions from dwc3 driver." 2019-07-04 13:02:09 +02:00
u_f.c usb: gadget: Change Andrzej Pietrasiewicz's e-mail address 2019-02-11 11:12:29 +02:00
u_f.h usb: gadget: Change Andrzej Pietrasiewicz's e-mail address 2019-02-11 11:12:29 +02:00
u_os_desc.h usb: gadget: Change Andrzej Pietrasiewicz's e-mail address 2019-02-11 11:12:29 +02:00
usbstring.c usb/gadget: Constify usb_gadget_get_string "table" argument 2018-05-15 10:06:49 +03:00