linux-stable/drivers/tty
Wolfram Sang d9754fc9c0 serial: sh-sci: protect invalidating RXDMA on shutdown
[ Upstream commit aae20f6e34 ]

The to-be-fixed commit removed locking when invalidating the DMA RX
descriptors on shutdown. It overlooked that there is still a rx_timer
running which may still access the protected data. So, re-add the
locking.

Reported-by: Dirk Behme <dirk.behme@de.bosch.com>
Closes: https://lore.kernel.org/r/ee6c9e16-9f29-450e-81da-4a8dceaa8fc7@de.bosch.com
Fixes: 2c4ee23530 ("serial: sh-sci: Postpone DMA release when falling back to PIO")
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/20240506114016.30498-7-wsa+renesas@sang-engineering.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-06-16 13:28:43 +02:00
..
hvc hvc/xen: fix error path in xen_hvc_init() to always register frontend driver 2023-11-28 16:50:18 +00:00
ipwireless
serdev
serial serial: sh-sci: protect invalidating RXDMA on shutdown 2024-06-16 13:28:43 +02:00
vt vt: fix memory overlapping when deleting chars in the buffer 2024-04-13 12:51:31 +02:00
amiserial.c
cyclades.c
ehv_bytechan.c
goldfish.c
isicom.c
Kconfig
Makefile
mips_ejtag_fdc.c
moxa.c
moxa.h
mxser.c
mxser.h
n_gsm.c tty: n_gsm: fix possible out-of-bounds in gsm0_receive() 2024-06-16 13:28:30 +02:00
n_hdlc.c
n_null.c
n_r3964.c
n_tracerouter.c
n_tracesink.c
n_tracesink.h
n_tty.c
nozomi.c
pty.c
rocket.c
rocket.h
rocket_int.h
synclink.c
synclink_gt.c
synclinkmp.c
sysrq.c
tty_audit.c
tty_baudrate.c
tty_buffer.c
tty_io.c
tty_ioctl.c
tty_jobctrl.c tty: tty_jobctrl: fix pid memleak in disassociate_ctty() 2023-11-20 10:30:13 +01:00
tty_ldisc.c
tty_ldsem.c
tty_mutex.c
tty_port.c
ttynull.c
vcc.c tty: vcc: Add check for kstrdup() in vcc_probe() 2023-11-28 16:50:15 +00:00