A-Team_Digital_Solutions/android_kernel_motorola_sm6375
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android_kernel_motorola_sm6375/drivers/tty
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Repository files (latest commit first)
Filename Latest commit message Latest commit date
Emil Kronborg 21535ef0ac serial: mxs-auart: add spinlock around changing cts state 
[ Upstream commit 54c4ec5f8c471b7c1137a1f769648549c423c026 ]

The uart_handle_cts_change() function in serial_core expects the caller
to hold uport->lock. For example, I have seen the below kernel splat,
when the Bluetooth driver is loaded on an i.MX28 board.

    [   85.119255] ------------[ cut here ]------------
    [   85.124413] WARNING: CPU: 0 PID: 27 at /drivers/tty/serial/serial_core.c:3453 uart_handle_cts_change+0xb4/0xec
    [   85.134694] Modules linked in: hci_uart bluetooth ecdh_generic ecc wlcore_sdio configfs
    [   85.143314] CPU: 0 PID: 27 Comm: kworker/u3:0 Not tainted 6.6.3-00021-gd62a2f068f92 #1
    [   85.151396] Hardware name: Freescale MXS (Device Tree)
    [   85.156679] Workqueue: hci0 hci_power_on [bluetooth]
    (...)
    [   85.191765]  uart_handle_cts_change from mxs_auart_irq_handle+0x380/0x3f4
    [   85.198787]  mxs_auart_irq_handle from __handle_irq_event_percpu+0x88/0x210
    (...)

Cc: stable@vger.kernel.org
Fixes: 4d90bb147e ("serial: core: Document and assert lock requirements for irq helpers")
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Emil Kronborg <emil.kronborg@protonmail.com>
Link: https://lore.kernel.org/r/20240320121530.11348-1-emil.kronborg@protonmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-05-02 16:18:35 +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: mxs-auart: add spinlock around changing cts state 2024-05-02 16:18:35 +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 treewide: Remove uninitialized_var() usage 2023-06-09 10:29:01 +02:00
ehv_bytechan.c
goldfish.c
isicom.c treewide: Remove uninitialized_var() usage 2023-06-09 10:29:01 +02:00
Kconfig
Makefile
mips_ejtag_fdc.c
moxa.c
moxa.h
mxser.c
mxser.h
n_gsm.c tty: n_gsm: require CAP_NET_ADMIN to attach N_GSM0710 ldisc 2024-04-13 12:51:40 +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: Prevent writing chars during tcsetattr TCSADRAIN/FLUSH 2023-05-17 11:36:04 +02:00
tty_ioctl.c tty: Prevent writing chars during tcsetattr TCSADRAIN/FLUSH 2023-05-17 11:36:04 +02:00
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