Re: [PATCH] serial: of-serial: zero-out struct of_serial_info

[Arnd Bergmann]

On Thursday 30 October 2014 14:18:33 Florian Fainelli wrote:
> of_platform_serial_probe() invokes of_platform_serial_setup() with a
> kmalloc'd struct of_serial_info cookie, which is not much of a problem
> for most of the struct of_serial_info fields we access but info->clk.
> 
> On platforms which do not provide a clock phandle for their UART nodes
> but do provide a 'clock-frequency' property, we basically leave the
> info->clk variable uninitialized, and this craps out during
> suspend/resume with oopses, crashes or warnings in the clock code.
> 
> Fix this by using kzalloc() which also zeroes-out the structure and
> provides an initialized info->clk member set to NULL.
> 
> Fixes: 2dea53bf57783 ("serial: of-serial: add PM suspend/resume support")
> Fixes: e34b9c94b6e8d ("[POWERPC] of_serial: add port type checking")
> Signed-off-by: Florian Fainelli <f.fainelli@xxxxxxxxx>
> 

I thought I'd acked this patch before, maybe someone else sent the same
one. This is definitely required, so

Acked-by: Arnd Bergmann <arnd@xxxxxxxx>
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