Wolfram Sang 91811a31b6 i2c: smbus: fix NULL function pointer dereference ...

Baruch reported an OOPS when using the designware controller as target
only. Target-only modes break the assumption of one transfer function
always being available. Fix this by always checking the pointer in
__i2c_transfer.

Reported-by: Baruch Siach <baruch@tkos.co.il>
Closes: https://lore.kernel.org/r/4269631780e5ba789cf1ae391eec1b959def7d99.1712761976.git.baruch@tkos.co.il
Fixes: 4b1acc4333 ("i2c: core changes for slave support")
[wsa: dropped the simplification in core-smbus to avoid theoretical regressions]
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Tested-by: Baruch Siach <baruch@tkos.co.il>

2024-04-27 12:57:57 +02:00

..

algos

i2c: algo: bit: allow getsda to be NULL

2023-01-23 23:15:49 +01:00

busses

i2c: pxa: hide unused icr_bits[] variable

2024-04-04 01:07:57 +02:00

muxes

i2c: muxes: pca954x: Allow sharing reset GPIO

2024-03-20 09:45:04 +01:00

i2c-atr.c

i2c: Annotate struct i2c_atr with __counted_by

2023-09-24 22:50:25 +02:00

i2c-boardinfo.c

i2c: Remove support for dangling device properties

2021-04-10 21:43:02 +02:00

i2c-core-acpi.c

i2c: add fwnode APIs

2023-01-17 09:29:59 +01:00

i2c-core-base.c

i2c: smbus: fix NULL function pointer dereference

2024-04-27 12:57:57 +02:00

i2c-core-of.c

Merge tag 'char-misc-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

2023-04-27 12:07:50 -07:00

i2c-core-slave.c

i2c: add tracepoints for I2C slave events

2022-03-20 00:11:05 +01:00

i2c-core-smbus.c

i2c: smbus: Check for parent device before dereference

2022-02-19 12:37:20 +01:00

i2c-core.h

i2c: core: Fix atomic xfer check for non-preempt config

2024-01-06 14:10:10 +01:00

i2c-dev.c

i2c: dev: copy userspace array safely

2023-11-08 10:26:27 +01:00

i2c-mux.c

i2c: mux: Avoid potential false error message in i2c_mux_add_adapter

2023-09-25 08:22:02 +02:00

i2c-slave-eeprom.c

i2c: Convert drivers to new .probe() callback

2023-03-09 21:59:30 +01:00

i2c-slave-testunit.c

i2c: Convert drivers to new .probe() callback

2023-03-09 21:59:30 +01:00

i2c-smbus.c

i2c: smbus: Prepare i2c_register_spd for usage on muxed segments

2024-03-04 21:44:56 +01:00

i2c-stub.c

i2c: stub: Don't let i2c adapters declare I2C_CLASS_SPD support if they support I2C_CLASS_HWMON

2024-01-18 21:10:41 +01:00

Kconfig

i2c: Make I2C_ATR invisible

2023-09-13 10:56:00 +02:00

Makefile

media: i2c: add I2C Address Translator (ATR) support

2023-07-14 13:11:44 +02:00