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regulator: Check ramp_delay_table for regulator_set_ramp_delay_regmap

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Return -EINVAL if ramp_delay_table is NULL.
Also add WARN_ON since the driver code needs fix if this happened.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Link: https://lore.kernel.org/r/20210519132255.1683863-1-axel.lin@ingics.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Axel Lin 2021-05-19 21:22:55 +08:00 committed by Mark Brown
parent 34991ee96f
commit 687c9e3b1a
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1 changed files with 1 additions and 1 deletions
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drivers/regulator/helpers.c
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@ -948,7 +948,7 @@ int regulator_set_ramp_delay_regmap(struct regulator_dev *rdev, int ramp_delay)
int ret;
unsigned int sel;
if (!rdev->desc->n_ramp_values)
if (WARN_ON(!rdev->desc->n_ramp_values || !rdev->desc->ramp_delay_table))
return -EINVAL;
ret = find_closest_bigger(ramp_delay, rdev->desc->ramp_delay_table,