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authorMarkus Pargmann <mpa@pengutronix.de>2014-10-06 23:33:37 +0400
committerMark Brown <broonie@kernel.org>2014-10-20 15:23:41 +0400
commitda0607c8df5c6277ff75468f24e055f193b6b336 (patch)
treed2bf4f4426a513afef9b83763e4897e85dbc1305 /drivers/regulator
parentfe08be3ec8672ed92b3ed1b85810df9fa0f98931 (diff)
downloadlinux-da0607c8df5c6277ff75468f24e055f193b6b336.tar.xz
regulator: anatop: Fail on invalid voltage selector
A '0' voltage selector is invalid and can't be used with this driver. Signed-off-by: Markus Pargmann <mpa@pengutronix.de> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/regulator')
-rw-r--r--drivers/regulator/anatop-regulator.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/regulator/anatop-regulator.c b/drivers/regulator/anatop-regulator.c
index 30e8d7ad5813..542d14ed48bb 100644
--- a/drivers/regulator/anatop-regulator.c
+++ b/drivers/regulator/anatop-regulator.c
@@ -291,6 +291,11 @@ static int anatop_regulator_probe(struct platform_device *pdev)
*/
if (!sreg->sel && !strcmp(sreg->name, "vddpu"))
sreg->sel = 22;
+
+ if (!sreg->sel) {
+ dev_err(&pdev->dev, "Failed to read a valid default voltage selector.\n");
+ return -EINVAL;
+ }
} else {
rdesc->ops = &anatop_rops;
}