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SubjectRe: [PATCH] [v2] staging: iio: ad5933: avoid uninitialized variable in error case
On 10/25/2016 06:57 PM, Jonathan Cameron wrote:
> On 24/10/16 16:22, Arnd Bergmann wrote:
>> The ad5933_i2c_read function returns an error code to indicate
>> whether it could read data or not. However ad5933_work() ignores
>> this return code and just accesses the data unconditionally,
>> which gets detected by gcc as a possible bug:
>> drivers/staging/iio/impedance-analyzer/ad5933.c: In function 'ad5933_work':
>> drivers/staging/iio/impedance-analyzer/ad5933.c:649:16: warning: 'status' may be used uninitialized in this function [-Wmaybe-uninitialized]
>> This adds minimal error handling so we only evaluate the
>> data if it was correctly read.
>> Link:
>> Signed-off-by: Arnd Bergmann <>
> Looks good to me.
> Lars?

Looks good, thanks.

Acked-by: Lars-Peter Clausen <>

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