1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/regulator/da9210-regulator.c b/drivers/regulator/da9210-regulator.c
index b3517830edb6..cfd6e8af67ec 100644
--- a/drivers/regulator/da9210-regulator.c
+++ b/drivers/regulator/da9210-regulator.c
@@ -132,6 +132,8 @@ static irqreturn_t da9210_irq_handler(int irq, void *data)
         if (error < 0)
                 goto error_i2c;
 
+        mutex_lock(&chip->rdev->mutex);
+
         if (val & DA9210_E_OVCURR) {
                 regulator_notifier_call_chain(chip->rdev,
                                               REGULATOR_EVENT_OVER_CURRENT,
@@ -155,6 +157,9 @@ static irqreturn_t da9210_irq_handler(int irq, void *data)
                                               NULL);
                 handled |= DA9210_E_VMAX;
         }
+
+        mutex_unlock(&chip->rdev->mutex);
+
         if (handled) {
                 /* Clear handled events */
                 error = regmap_write(chip->regmap, DA9210_REG_EVENT_B, handled);