The patch

   regulator: Fix regulator_summary for deviceless consumers

has been applied to the regulator tree at


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>From e42a46b6f52473661ad192f76a128a68fe301df4 Mon Sep 17 00:00:00 2001
From: Leonard Crestez <>
Date: Tue, 14 Feb 2017 17:31:03 +0200
Subject: [PATCH] regulator: Fix regulator_summary for deviceless consumers

It is allowed to call regulator_get with a NULL dev argument
(_regulator_get explicitly checks for it) but this causes an error later
when printing /sys/kernel/debug/regulator_summary.

Fix this by explicitly handling "deviceless" consumers in the debugfs code.

Signed-off-by: Leonard Crestez <>
Signed-off-by: Mark Brown <>
 drivers/regulator/core.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 04baac9a165b..66319542baa6 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -4391,12 +4391,13 @@ static void regulator_summary_show_subtree(struct 
seq_file *s,
        seq_puts(s, "\n");
        list_for_each_entry(consumer, &rdev->consumer_list, list) {
-               if (consumer->dev->class == &regulator_class)
+               if (consumer->dev && consumer->dev->class == &regulator_class)
                seq_printf(s, "%*s%-*s ",
                           (level + 1) * 3 + 1, "",
-                          30 - (level + 1) * 3, dev_name(consumer->dev));
+                          30 - (level + 1) * 3,
+                          consumer->dev ? dev_name(consumer->dev) : 
                switch (rdev->desc->type) {
                case REGULATOR_VOLTAGE:

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