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regulator: qcom_spmi: Do NULL check for lvs

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Low-voltage switches (lvs) don't have set_points since the voltage ranges
of the output are really controlled by the inputs.  This is a problem for
the newly added linear range support in the probe(), as that will cause
a null pointer dereference error on older platforms like msm8974 which
happen to need to control some of the implemented lvs.

Fix this by adding the appropriate null check.

Fixes: 86f4ff7a0c0c ("regulator: qcom_spmi: enable linear range info")
Reported-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Jeffrey Hugo <jeffrey.l.hugo@gmail.com>
Tested-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Jeffrey Hugo 2019-06-20 07:22:28 -07:00 committed by Mark Brown
parent 61d7fdc49f
commit b01d182325
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GPG Key ID: 24D68B725D5487D0
1 changed files with 1 additions and 1 deletions
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2
drivers/regulator/qcom_spmi-regulator.c
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@ -2045,7 +2045,7 @@ static int qcom_spmi_regulator_probe(struct platform_device *pdev)
}
}
if (vreg->set_points->count == 1) {
if (vreg->set_points && vreg->set_points->count == 1) {
/* since there is only one range */
range = vreg->set_points->range;
vreg->desc.uV_step = range->step_uV;