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regulator: anatop: make sure regulator name is properly defined

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For anatop regulator we must have a name accordingly. Make sure the name
is properly checked before using it to avoid a possible kernel NULL
point crash.

Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Dong Aisheng 2017-04-14 22:32:43 +08:00 committed by Mark Brown
parent 9bf9445481
commit 4af5924c02
1 changed files with 5 additions and 2 deletions
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7
drivers/regulator/anatop-regulator.c
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@ -198,6 +198,10 @@ static int anatop_regulator_probe(struct platform_device *pdev)
rdesc->owner = THIS_MODULE;
of_property_read_string(np, "regulator-name", &rdesc->name);
if (!rdesc->name) {
dev_err(dev, "failed to get a regulator-name\n");
return -EINVAL;
}
initdata = of_get_regulator_init_data(dev, np, rdesc);
if (!initdata)
@ -300,8 +304,7 @@ static int anatop_regulator_probe(struct platform_device *pdev)
sreg->sel = 22;
/* set the default voltage of the pcie phy to be 1.100v */
if (!sreg->sel && rdesc->name &&
!strcmp(rdesc->name, "vddpcie"))
if (!sreg->sel && !strcmp(rdesc->name, "vddpcie"))
sreg->sel = 0x10;
if (!sreg->bypass && !sreg->sel) {