Emil Kronborg 21535ef0ac serial: mxs-auart: add spinlock around changing cts state ... [ Upstream commit 54c4ec5f8c ] 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