diff options
| author | Leonard Crestez <leonard.crestez@nxp.com> | 2017-02-14 18:31:03 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2017-02-16 15:44:58 +0300 |
| commit | e42a46b6f52473661ad192f76a128a68fe301df4 (patch) | |
| tree | 7acfe205c917b10dbf77f3616cb6f5f4de6d37e0 /drivers/regulator | |
| parent | d00b74613fb18dfd0a5aa99270ee2e72d5c808d7 (diff) | |
| download | linux-e42a46b6f52473661ad192f76a128a68fe301df4.tar.xz | |
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 <leonard.crestez@nxp.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
Diffstat (limited to 'drivers/regulator')
| -rw-r--r-- | drivers/regulator/core.c | 5 |
1 files 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 == ®ulator_class) + if (consumer->dev && consumer->dev->class == ®ulator_class) continue; 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) : "deviceless"); switch (rdev->desc->type) { case REGULATOR_VOLTAGE: |