Jeongjun Park fc10f554cd usb: using mutex lock and supporting O_NONBLOCK flag in iowarrior_read() ... [ Upstream commit 44feafbaa66ec86232b123bb8437a6a262442025 ] iowarrior_read() uses the iowarrior dev structure, but does not use any lock on the structure. This can cause various bugs including data-races, so it is more appropriate to use a mutex lock to safely protect the iowarrior dev structure. When using a mutex lock, you should split the branch to prevent blocking when the O_NONBLOCK flag is set. In addition, it is unnecessary to check for NULL on the iowarrior dev structure obtained by reading file->private_data. Therefore, it is better to remove the check. Fixes: 946b960d13c1 ("USB: add driver for iowarrior devices.") Signed-off-by: Jeongjun Park <aha310510@gmail.com> Link: https://lore.kernel.org/r/20240919103403.3986-1-aha310510@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2024-12-17 13:24:16 +01:00
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sisusbvga
adutux.c
apple-mfi-fastcharge.c
appledisplay.c	Revert "USB: appledisplay: close race between probe and completion handler"	2024-11-24 00:23:17 +01:00
chaoskey.c
cypress_cy7c63.c	Revert "USB: misc: cypress_cy7c63: check for short transfer"	2024-11-24 00:23:17 +01:00
cytherm.c
ehset.c
emi26.c
emi62.c
ezusb.c
ftdi-elan.c
idmouse.c
iowarrior.c	usb: using mutex lock and supporting O_NONBLOCK flag in iowarrior_read()	2024-12-17 13:24:16 +01:00
isight_firmware.c
Kconfig
ldusb.c
legousbtower.c
lvstest.c
Makefile
trancevibrator.c
usb251xb.c
usb3503.c
usb4604.c
usb_u132.h
usblcd.c
usbsevseg.c
usbtest.c
uss720.c
yurex.c	Revert "usb: yurex: Replace snprintf() with the safer scnprintf() variant"	2024-11-24 00:23:14 +01:00