From: "Mintz, Yuval"
Date: Sun, 4 Dec 2016 07:29:58 +
>> From: Pan Bian
>>
>> When calling dma_mapping_error(), the value of return variable rc is 0.
>> And when the call returns an unexpected value, rc is not set to a negative
>> errno. Thus, it will return 0 on the error path, and its cal
> From: Pan Bian
>
> When calling dma_mapping_error(), the value of return variable rc is 0.
> And when the call returns an unexpected value, rc is not set to a negative
> errno. Thus, it will return 0 on the error path, and its callers cannot detect
> the bug. This patch fixes the bug, assigning
From: Pan Bian
When calling dma_mapping_error(), the value of return variable rc is 0.
And when the call returns an unexpected value, rc is not set to a
negative errno. Thus, it will return 0 on the error path, and its
callers cannot detect the bug. This patch fixes the bug, assigning
"-ENOMEM" t
