* Re: [PATCH v1] drivers:iio:accel:mma8452: added cleanup provision in case of failure.
[not found] <KL1PR04MB1205AC29D431BAF1527101F980380@KL1PR04MB1205.apcprd04.prod.outlook.com>
@ 2016-07-04 12:20 ` Martin Kepplinger
2016-07-05 20:02 ` Jonathan Cameron
0 siblings, 1 reply; 3+ messages in thread
From: Martin Kepplinger @ 2016-07-04 12:20 UTC (permalink / raw)
To: Bijosh Thykkoottathil, jic23, knaack.h, lars, pmeerw, christoph.muellner
Cc: linux-iio, linux-kernel
Am 2016-07-04 um 12:08 schrieb Bijosh Thykkoottathil:
> mma8452_set_freefall_mode can return -ve value in case if
> i2c_smbus_read_byte_data fails. This function is called from mma8452_probe,
> and returning -ve value from probe indicates probe failure. Need to call
> iio_triggered_buffer_cleanup & iio_trigger_cleanup in this case.
Thanks for your review, nice catch! Looks good to me. You just could
have said "Don't leak allocated buffer on error during probe().", but oh
well :)
>
> Signed-off-by: Bijosh Thykkoottathil <bijosh.t@hotmail.com>
Reviewed-by: Martin Kepplinger <martink@posteo.de>
> ---
> drivers/iio/accel/mma8452.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/iio/accel/mma8452.c b/drivers/iio/accel/mma8452.c
> index e225d3c..1bcf5c3 100644
> --- a/drivers/iio/accel/mma8452.c
> +++ b/drivers/iio/accel/mma8452.c
> @@ -1444,8 +1444,8 @@ static int mma8452_probe(struct i2c_client *client,
> goto buffer_cleanup;
>
> ret = mma8452_set_freefall_mode(data, false);
> - if (ret)
> - return ret;
> + if (ret < 0)
> + goto buffer_cleanup;
>
> return 0;
>
>
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH v1] drivers:iio:accel:mma8452: added cleanup provision in case of failure.
2016-07-04 12:20 ` [PATCH v1] drivers:iio:accel:mma8452: added cleanup provision in case of failure Martin Kepplinger
@ 2016-07-05 20:02 ` Jonathan Cameron
2016-07-05 20:06 ` Jonathan Cameron
0 siblings, 1 reply; 3+ messages in thread
From: Jonathan Cameron @ 2016-07-05 20:02 UTC (permalink / raw)
To: Martin Kepplinger, Bijosh Thykkoottathil, knaack.h, lars, pmeerw,
christoph.muellner
Cc: linux-iio, linux-kernel
On 04/07/16 13:20, Martin Kepplinger wrote:
> Am 2016-07-04 um 12:08 schrieb Bijosh Thykkoottathil:
>> mma8452_set_freefall_mode can return -ve value in case if
>> i2c_smbus_read_byte_data fails. This function is called from mma8452_probe,
>> and returning -ve value from probe indicates probe failure. Need to call
>> iio_triggered_buffer_cleanup & iio_trigger_cleanup in this case.
>
> Thanks for your review, nice catch! Looks good to me. You just could
> have said "Don't leak allocated buffer on error during probe().", but oh
> well :)
>
>>
>> Signed-off-by: Bijosh Thykkoottathil <bijosh.t@hotmail.com>
> Reviewed-by: Martin Kepplinger <martink@posteo.de>
Applied, thanks.
Jonathan
>
>> ---
>> drivers/iio/accel/mma8452.c | 4 ++--
>> 1 file changed, 2 insertions(+), 2 deletions(-)
>>
>> diff --git a/drivers/iio/accel/mma8452.c b/drivers/iio/accel/mma8452.c
>> index e225d3c..1bcf5c3 100644
>> --- a/drivers/iio/accel/mma8452.c
>> +++ b/drivers/iio/accel/mma8452.c
>> @@ -1444,8 +1444,8 @@ static int mma8452_probe(struct i2c_client *client,
>> goto buffer_cleanup;
>>
>> ret = mma8452_set_freefall_mode(data, false);
>> - if (ret)
>> - return ret;
>> + if (ret < 0)
>> + goto buffer_cleanup;
>>
>> return 0;
>>
>>
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH v1] drivers:iio:accel:mma8452: added cleanup provision in case of failure.
2016-07-05 20:02 ` Jonathan Cameron
@ 2016-07-05 20:06 ` Jonathan Cameron
0 siblings, 0 replies; 3+ messages in thread
From: Jonathan Cameron @ 2016-07-05 20:06 UTC (permalink / raw)
To: Martin Kepplinger, Bijosh Thykkoottathil, knaack.h, lars, pmeerw,
christoph.muellner
Cc: linux-iio, linux-kernel
On 05/07/16 21:02, Jonathan Cameron wrote:
> On 04/07/16 13:20, Martin Kepplinger wrote:
>> Am 2016-07-04 um 12:08 schrieb Bijosh Thykkoottathil:
>>> mma8452_set_freefall_mode can return -ve value in case if
>>> i2c_smbus_read_byte_data fails. This function is called from mma8452_probe,
>>> and returning -ve value from probe indicates probe failure. Need to call
>>> iio_triggered_buffer_cleanup & iio_trigger_cleanup in this case.
>>
>> Thanks for your review, nice catch! Looks good to me. You just could
>> have said "Don't leak allocated buffer on error during probe().", but oh
>> well :)
>>
>>>
>>> Signed-off-by: Bijosh Thykkoottathil <bijosh.t@hotmail.com>
>> Reviewed-by: Martin Kepplinger <martink@posteo.de>
> Applied, thanks.
Flipped this one over to an Acked-by as well for same reason
as the other patch though even more so here!
>
> Jonathan
>>
>>> ---
>>> drivers/iio/accel/mma8452.c | 4 ++--
>>> 1 file changed, 2 insertions(+), 2 deletions(-)
>>>
>>> diff --git a/drivers/iio/accel/mma8452.c b/drivers/iio/accel/mma8452.c
>>> index e225d3c..1bcf5c3 100644
>>> --- a/drivers/iio/accel/mma8452.c
>>> +++ b/drivers/iio/accel/mma8452.c
>>> @@ -1444,8 +1444,8 @@ static int mma8452_probe(struct i2c_client *client,
>>> goto buffer_cleanup;
>>>
>>> ret = mma8452_set_freefall_mode(data, false);
>>> - if (ret)
>>> - return ret;
>>> + if (ret < 0)
>>> + goto buffer_cleanup;
>>>
>>> return 0;
>>>
>>>
>
> --
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^ permalink raw reply [flat|nested] 3+ messages in thread
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2016-07-04 12:20 ` [PATCH v1] drivers:iio:accel:mma8452: added cleanup provision in case of failure Martin Kepplinger
2016-07-05 20:02 ` Jonathan Cameron
2016-07-05 20:06 ` Jonathan Cameron
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