linux-stable/drivers/tty
Dan Carpenter 27a826837e serial: atmel: don't enable IRQs prematurely
The atmel_complete_tx_dma() function disables IRQs at the start
of the function by calling spin_lock_irqsave(&port->lock, flags);
There is no need to disable them a second time using the
spin_lock_irq() function and, in fact, doing so is a bug because
it will enable IRQs prematurely when we call spin_unlock_irq().

Just use spin_lock/unlock() instead without disabling or enabling
IRQs.

Fixes: 08f738be88 ("serial: at91: add tx dma support")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Jiri Slaby <jirislaby@kernel.org>
Acked-by: Richard Genoud <richard.genoud@gmail.com>
Link: https://lore.kernel.org/r/cb7c39a9-c004-4673-92e1-be4e34b85368@moroto.mountain
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-06-21 17:54:33 +02:00
..
hvc xen: branch for v6.3-rc4 2023-03-24 09:44:43 -07:00
ipwireless
serdev serdev: Add method to assert break signal over tty UART port 2023-04-23 21:51:25 -07:00
serial serial: atmel: don't enable IRQs prematurely 2023-06-21 17:54:33 +02:00
vt vc_screen: reload load of struct vc_data pointer in vcs_write() to avoid UAF 2023-05-13 20:01:13 +09:00
amiserial.c tty: Convert hw_stopped in tty_struct to bool 2023-03-17 15:01:09 +01:00
ehv_bytechan.c
goldfish.c
Kconfig Char/Misc drivers for 6.4-rc1 2023-04-27 12:07:50 -07:00
Makefile
mips_ejtag_fdc.c
moxa.c tty: moxa: Rename dtr/rts parameters/variables to active 2023-01-19 16:04:35 +01:00
mxser.c tty: Convert hw_stopped in tty_struct to bool 2023-03-17 15:01:09 +01:00
n_gsm.c n_gsm: Use array_index_nospec() with index that comes from userspace 2023-04-20 14:11:33 +02:00
n_hdlc.c
n_null.c
n_tty.c tty: fix hang on tty device with no_room set 2023-06-15 12:21:11 +02:00
nozomi.c
pty.c tty: make tty_class a static const structure 2023-04-03 21:43:07 +02:00
rpmsg_tty.c
synclink_gt.c tty: synclink_gt: don't allocate and pass dummy flags 2023-04-20 13:32:53 +02:00
sysrq.c
tty.h tty: Prevent writing chars during tcsetattr TCSADRAIN/FLUSH 2023-03-29 10:55:53 +02:00
tty_audit.c
tty_baudrate.c
tty_buffer.c
tty_io.c tty: tty_io: update timestamps on all device nodes 2023-06-15 13:45:42 +02:00
tty_ioctl.c tty: Prevent writing chars during tcsetattr TCSADRAIN/FLUSH 2023-03-29 10:55:53 +02:00
tty_jobctrl.c
tty_ldisc.c tty: tty_ldisc: Remove the ret variable 2023-03-09 17:11:18 +01:00
tty_ldsem.c
tty_mutex.c
tty_port.c tty: Convert ->dtr_rts() to take bool argument 2023-01-19 16:04:35 +01:00
ttynull.c
vcc.c