* [PATCH] hwmon-ntc_thermistor: Delete an unnecessary check before the function call "iio_channel_release" [not found] ` <5317A59D.4@users.sourceforge.net> @ 2016-07-18 18:54 ` SF Markus Elfring 2016-07-19 3:35 ` Guenter Roeck 0 siblings, 1 reply; 2+ messages in thread From: SF Markus Elfring @ 2016-07-18 18:54 UTC (permalink / raw) To: linux-hwmon, Günter Röck, Jean Delvare Cc: LKML, kernel-janitors, Julia Lawall From: Markus Elfring <elfring@users.sourceforge.net> Date: Mon, 18 Jul 2016 20:34:41 +0200 The iio_channel_release() function tests whether its argument is NULL and then returns immediately. Thus the test around the call is not needed. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> --- drivers/hwmon/ntc_thermistor.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/hwmon/ntc_thermistor.c b/drivers/hwmon/ntc_thermistor.c index 8ef7b71..100878a 100644 --- a/drivers/hwmon/ntc_thermistor.c +++ b/drivers/hwmon/ntc_thermistor.c @@ -361,8 +361,7 @@ ntc_thermistor_parse_dt(struct platform_device *pdev) } static void ntc_iio_channel_release(struct ntc_thermistor_platform_data *pdata) { - if (pdata->chan) - iio_channel_release(pdata->chan); + iio_channel_release(pdata->chan); } #else static struct ntc_thermistor_platform_data * -- 2.9.2 ^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] hwmon-ntc_thermistor: Delete an unnecessary check before the function call "iio_channel_release" 2016-07-18 18:54 ` [PATCH] hwmon-ntc_thermistor: Delete an unnecessary check before the function call "iio_channel_release" SF Markus Elfring @ 2016-07-19 3:35 ` Guenter Roeck 0 siblings, 0 replies; 2+ messages in thread From: Guenter Roeck @ 2016-07-19 3:35 UTC (permalink / raw) To: SF Markus Elfring, linux-hwmon, Jean Delvare Cc: LKML, kernel-janitors, Julia Lawall On 07/18/2016 11:54 AM, SF Markus Elfring wrote: > From: Markus Elfring <elfring@users.sourceforge.net> > Date: Mon, 18 Jul 2016 20:34:41 +0200 > > The iio_channel_release() function tests whether its argument is NULL > and then returns immediately. Thus the test around the call is not needed. > > This issue was detected by using the Coccinelle software. > > Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> A much better change would be to use devm_iio_channel_get() instead of iio_channel_get(), and to remove ntc_iio_channel_release() completely. Guenter ^ permalink raw reply [flat|nested] 2+ messages in thread
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2016-07-18 18:54 ` [PATCH] hwmon-ntc_thermistor: Delete an unnecessary check before the function call "iio_channel_release" SF Markus Elfring
2016-07-19 3:35 ` Guenter Roeck
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