This prevents the output of just

        dummy:

in the boot log. Now it says:

        regulator-dummy: no parameters

which at least doesn't make it look like an accidental printk and also doesn't
only use "dummy" which could mean anything.

Signed-off-by: Uwe Kleine-König <u.kleine-koe...@pengutronix.de>
---
 drivers/regulator/core.c  |    3 +++
 drivers/regulator/dummy.c |    2 +-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 8b4b382..1ca21cb 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -808,6 +808,9 @@ static void print_constraints(struct regulator_dev *rdev)
        if (constraints->valid_modes_mask & REGULATOR_MODE_STANDBY)
                count += sprintf(buf + count, "standby");
 
+       if (!count)
+               sprintf(buf, "no parameters");
+
        rdev_info(rdev, "%s\n", buf);
 
        if ((constraints->min_uV != constraints->max_uV) &&
diff --git a/drivers/regulator/dummy.c b/drivers/regulator/dummy.c
index 86f655c..03a1d7c 100644
--- a/drivers/regulator/dummy.c
+++ b/drivers/regulator/dummy.c
@@ -30,7 +30,7 @@ static struct regulator_init_data dummy_initdata;
 static struct regulator_ops dummy_ops;
 
 static struct regulator_desc dummy_desc = {
-       .name = "dummy",
+       .name = "regulator-dummy",
        .id = -1,
        .type = REGULATOR_VOLTAGE,
        .owner = THIS_MODULE,
-- 
1.7.10.4

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