Re: [PATCH] iio: multiplexer: add NULL check on devm_kzalloc() and devm_kmemdup() return values
From: Peter Rosin
Date: Fri Jul 07 2017 - 05:27:14 EST
On 2017-07-07 06:57, Peter Rosin wrote:
> On 2017-07-07 06:53, Gustavo A. R. Silva wrote:
>> Check return values from call to devm_kzalloc() and devm_kmemup()
>
> If someone cares enough: s/devm_kmemup/evm_kmemdup/
Strange, there seems to be some inherent shortage of 'd' characters...
Cheers,
pea :-)
>
>> in order to prevent a NULL pointer dereference.
>>
>> This issue was detected using Coccinelle and the following semantic patch:
>>
>> @@
>> expression x;
>> identifier fld;
>> @@
>>
>> * x = devm_kzalloc(...);
>> ... when != x == NULL
>> x->fld
>>
>> Cc: Peter Rosin <peda@xxxxxxxxxx>
>> Signed-off-by: Gustavo A. R. Silva <garsilva@xxxxxxxxxxxxxx>
>
> Either way,
>
> Reviewed-by: Peter Rosin <peda@xxxxxxxxxx>
>
> Thanks!
>