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| author | Rob Herring (Arm) <robh@kernel.org> | 2024-07-31 14:14:03 -0600 |
|---|---|---|
| committer | Uwe Kleine-König <ukleinek@kernel.org> | 2024-09-05 11:14:14 +0200 |
| commit | 75f0cb339b7814dc759c58a0d42fc5c1b93c7836 (patch) | |
| tree | addf685969a3cfe7d0b9353da8be0077bfc5d168 /drivers/pwm | |
| parent | f9ecc2febf6fd6ad53208a1c0e1b5066ee65dd8b (diff) | |
| download | lwn-75f0cb339b7814dc759c58a0d42fc5c1b93c7836.tar.gz lwn-75f0cb339b7814dc759c58a0d42fc5c1b93c7836.zip | |
pwm: lp3943: Use of_property_count_u32_elems() to get property length
Replace of_get_property() with the type specific
of_property_count_u32_elems() to get the property length.
This is part of a larger effort to remove callers of of_get_property()
and similar functions. of_get_property() leaks the DT property data
pointer which is a problem for dynamically allocated nodes which may
be freed.
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20240731201407.1838385-8-robh@kernel.org
Signed-off-by: Uwe Kleine-König <ukleinek@kernel.org>
Diffstat (limited to 'drivers/pwm')
| -rw-r--r-- | drivers/pwm/pwm-lp3943.c | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/drivers/pwm/pwm-lp3943.c b/drivers/pwm/pwm-lp3943.c index 61189cea1046..f0e94c9e5956 100644 --- a/drivers/pwm/pwm-lp3943.c +++ b/drivers/pwm/pwm-lp3943.c @@ -218,7 +218,7 @@ static int lp3943_pwm_parse_dt(struct device *dev, struct lp3943_platform_data *pdata; struct lp3943_pwm_map *pwm_map; enum lp3943_pwm_output *output; - int i, err, proplen, count = 0; + int i, err, count = 0; u32 num_outputs; if (!node) @@ -234,11 +234,8 @@ static int lp3943_pwm_parse_dt(struct device *dev, */ for (i = 0; i < LP3943_NUM_PWMS; i++) { - if (!of_get_property(node, name[i], &proplen)) - continue; - - num_outputs = proplen / sizeof(u32); - if (num_outputs == 0) + num_outputs = of_property_count_u32_elems(node, name[i]); + if (num_outputs <= 0) continue; output = devm_kcalloc(dev, num_outputs, sizeof(*output), |