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pwm: samsung: Don't uses devm_*() functions in ->request()

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A call to ->request() is always paired by a call to ->free() before a
given device is disposed. So the simplification that usually is possible
when using devm_*() functions cannot be used here. So use plain
kzalloc() and kfree() for improved runtime behaviour and reduced memory
footprint.

Signed-off-by: Uwe Kleine-König <[email protected]>
[[email protected]: fix build failure]
Signed-off-by: Thierry Reding <[email protected]>
This commit is contained in:
Uwe Kleine-König 2019-03-25 10:49:34 +01:00 • committed by Thierry Reding
commit b05232d624
1 changed files with 2 additions and 2 deletions
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4
drivers/pwm/pwm-samsung.c
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@ -226,7 +226,7 @@ static int pwm_samsung_request(struct pwm_chip *chip, struct pwm_device *pwm)
return -EINVAL;
}
our_chan = devm_kzalloc(chip->dev, sizeof(*our_chan), GFP_KERNEL);
our_chan = kzalloc(sizeof(*our_chan), GFP_KERNEL);
if (!our_chan)
return -ENOMEM;
@ -237,7 +237,7 @@ static int pwm_samsung_request(struct pwm_chip *chip, struct pwm_device *pwm)
static void pwm_samsung_free(struct pwm_chip *chip, struct pwm_device *pwm)
{
devm_kfree(chip->dev, pwm_get_chip_data(pwm));
kfree(pwm_get_chip_data(pwm));
}
static int pwm_samsung_enable(struct pwm_chip *chip, struct pwm_device *pwm)