Re: [PATCH] i2c: smbus: fix NULL function pointer dereference

[Sergei Shtylyov]

On 4/26/24 9:44 AM, Wolfram Sang wrote:

> Brauch reported an OOPS when using the designware controller as target

   He's Baruch... :-)

> 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@xxxxxxxxxx>
> Closes: https://lore.kernel.org/r/4269631780e5ba789cf1ae391eec1b959def7d99.1712761976.git.baruch@xxxxxxxxxx
> Fixes: 4b1acc43331d ("i2c: core changes for slave support")
> Signed-off-by: Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx>

[...]

MBR, Sergey