Fan Wu 5974cb6668 serial: amba-pl011: synchronize DMA teardown ...

commit 4409154992 upstream.

dmaengine_terminate_all() does not wait for a running callback, so the TX
callback can still touch the TX buffer after it is freed. The RX poll
timer reads the RX buffers without the port lock.

Switch to dmaengine_terminate_sync() and delete the RX timer before
freeing the buffers.

Fixes: ead76f329f ("ARM: 6763/1: pl011: add optional RX DMA to PL011 v2")
Cc: stable <stable@kernel.org>
Assisted-by: Codex:gpt-5.6
Signed-off-by: Fan Wu <fanwu01@zju.edu.cn>
Link: https://patch.msgid.link/20260731085915.326775-4-fanwu01@zju.edu.cn
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2026-08-19 18:18:16 +02:00

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hvc

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ipwireless

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serdev

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serial

serial: amba-pl011: synchronize DMA teardown

2026-08-19 18:18:16 +02:00

vt

vt: stabilize tty reference in kbd_keycode with tty_port_tty_get

2026-08-19 18:17:55 +02:00

amiserial.c

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ehv_bytechan.c

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goldfish.c

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Kconfig

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Makefile

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mips_ejtag_fdc.c

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moxa.c

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mxser.c

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n_gsm.c

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n_hdlc.c

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n_null.c

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n_tty.c

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nozomi.c

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pty.c

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rpmsg_tty.c

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synclink_gt.c

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sysrq.c

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tty_audit.c

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tty_baudrate.c

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tty_buffer.c

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tty_io.c

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tty_ioctl.c

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tty_jobctrl.c

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tty_ldisc.c

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tty_ldsem.c

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tty_mutex.c

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tty_port.c

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tty.h

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ttynull.c

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vcc.c

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