[PATCH 1/1] rtc: gemini: add return value validation

[Alexandre Belloni]

On 23/04/2017 at 20:48:07 +0800, Pan Bian wrote:
> From: Pan Bian <bianpan2016 at 163.com>
> 
> Function devm_ioremap() will return a NULL pointer if it fails to remap
> IO address, and its return value should be validated before it is used.
> However, in function gemini_rtc_probe(), its return value is not
> checked. This may result in bad memory access bugs on future access,
> e.g. calling the function gemini_rtc_read_time().
> 
> Signed-off-by: Pan Bian <bianpan2016 at 163.com>
> ---
>  drivers/rtc/rtc-gemini.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
Applied, thanks.

-- 
Alexandre Belloni, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com