linux-stable/drivers/i3c
Len Baker 313ece2260 i3c/master/mipi-i3c-hci: Prefer kcalloc over open coded arithmetic
As noted in the "Deprecated Interfaces, Language Features, Attributes,
and Conventions" documentation [1], size calculations (especially
multiplication) should not be performed in memory allocator (or similar)
function arguments due to the risk of them overflowing. This could lead
to values wrapping around and a smaller allocation being made than the
caller was expecting. Using those allocations could lead to linear
overflows of heap memory and other misbehaviors.

So, use the purpose specific kcalloc() function instead of the argument
size * count in the kzalloc() function.

[1] https://www.kernel.org/doc/html/v5.14/process/deprecated.html#open-coded-arithmetic-in-allocator-arguments

Signed-off-by: Len Baker <len.baker@gmx.com>
Acked-by: Nicolas Pitre <npitre@baylibre.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20210912155135.7541-1-len.baker@gmx.com
2021-12-10 15:54:46 +01:00
..
master i3c/master/mipi-i3c-hci: Prefer kcalloc over open coded arithmetic 2021-12-10 15:54:46 +01:00
device.c i3c: Handle drivers without probe or remove callback 2021-02-02 00:16:57 +01:00
internals.h
Kconfig
Makefile
master.c bus: Make remove callback return void 2021-07-21 11:53:42 +02:00