Miaoqian LinandGreg Kroah-Hartman d109718f21 serial: amba-pl011: prefer dma_mapping_error() over explicit address checking ...

commit eb4917f557 upstream.

Check for returned DMA addresses using specialized dma_mapping_error()
helper which is generally recommended for this purpose by
Documentation/core-api/dma-api.rst:

  "In some circumstances dma_map_single(), ...
will fail to create a mapping. A driver can check for these errors
by testing the returned DMA address with dma_mapping_error()."

Found via static analysis and this is similar to commit fa0308134d
("ALSA: memalloc: prefer dma_mapping_error() over explicit address checking")

Fixes: 58ac1b3799 ("ARM: PL011: Fix DMA support")
Cc: stable <stable@kernel.org>
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Reviewed-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Link: https://patch.msgid.link/20251027092053.87937-1-linmq006@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2025-12-07 06:12:43 +09:00

..

hvc

tty: hvc_console: Call hvc_kick in hvc_write unconditionally

2025-09-19 16:29:58 +02:00

ipwireless

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serdev

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serial

serial: amba-pl011: prefer dma_mapping_error() over explicit address checking

2025-12-07 06:12:43 +09:00

vt

vt: defkeymap: Map keycodes above 127 to K_HOLE

2025-08-28 16:26:05 +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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