[PATCH] hwmon: (corsair-psu) Protect debugfs accesses with subsystem lock

[Guenter Roeck]

Debugfs accesses need to be mutext protected. Acquire hwmon
subsystem lock to avoid race conditions against hwmon sysfs
accesses.

Signed-off-by: Guenter Roeck <linux@xxxxxxxxxxxx>
---
 drivers/hwmon/corsair-psu.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/hwmon/corsair-psu.c b/drivers/hwmon/corsair-psu.c
index 76f3e1da68d0..4a456ba44a9b 100644
--- a/drivers/hwmon/corsair-psu.c
+++ b/drivers/hwmon/corsair-psu.c
@@ -664,6 +664,8 @@ static void print_uptime(struct seq_file *seqf, u8 cmd)
 	long val;
 	int ret;
 
+	guard(hwmon_lock)(priv->hwmon_dev);
+
 	ret = corsairpsu_get_value(priv, cmd, 0, &val);
 	if (ret < 0) {
 		seq_puts(seqf, "N/A\n");
@@ -723,6 +725,8 @@ static int ocpmode_show(struct seq_file *seqf, void *unused)
 	long val;
 	int ret;
 
+	guard(hwmon_lock)(priv->hwmon_dev);
+
 	/*
 	 * The rail mode is switchable on the fly. The RAW interface can be used for this. But it
 	 * will not be included here, because I consider it somewhat dangerous for the health of the
-- 
2.45.2