linux

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History

Stefan Wahren ababb08938 i2c: bcm2835: Avoid possible NULL ptr dereference

Since commit e2474541032d ("bcm2835: Fix hang for writing messages
larger than 16 bytes") the interrupt handler is prone to a possible
NULL pointer dereference. This could happen if an interrupt fires
before curr_msg is set by bcm2835_i2c_xfer_msg() and randomly occurs
on the RPi 3. Even this is an unexpected behavior the driver must
handle that with an error instead of a crash.

Reported-by: Peter Robinson <pbrobinson@gmail.com>
Fixes: e2474541032d ("bcm2835: Fix hang for writing messages larger than 16 bytes")
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Acked-by: Noralf Trønnes <noralf@tronnes.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>

2017-02-20 19:19:54 +01:00

algos

i2c: algo-bit: declare i2c_bit_quirk_no_clk_stretch as static

2016-05-11 17:16:30 +02:00

busses

i2c: bcm2835: Avoid possible NULL ptr dereference

2017-02-20 19:19:54 +01:00

muxes

Merge branch 'i2c-mux/for-next' of https://github.com/peda-r/i2c-mux into i2c/for-4.11

2017-02-10 12:51:23 +01:00

i2c-boardinfo.c

i2c: remove __init from i2c_register_board_info()