@@ -364,6 +364,8 @@ static ssize_t taal_num_errors_show(struct device *dev,
u8 errors;
int r;
+ mutex_lock(&td->lock);
+
if (td->enabled) {
dsi_bus_lock();
r = taal_dcs_read_1(DCS_READ_NUM_ERRORS, &errors);
@@ -372,6 +374,8 @@ static ssize_t taal_num_errors_show(struct device *dev,
r = -ENODEV;
}
+ mutex_unlock(&td->lock);
+
if (r)
return r;
@@ -386,6 +390,8 @@ static ssize_t taal_hw_revision_show(struct device *dev,
u8 id1, id2, id3;
int r;
+ mutex_lock(&td->lock);
+
if (td->enabled) {
dsi_bus_lock();
r = taal_get_id(&id1, &id2, &id3);
@@ -394,6 +400,8 @@ static ssize_t taal_hw_revision_show(struct device *dev,
r = -ENODEV;
}
+ mutex_unlock(&td->lock);
+
if (r)
return r;
@@ -443,6 +451,8 @@ static ssize_t store_cabc_mode(struct device *dev,
if (i == ARRAY_SIZE(cabc_modes))
return -EINVAL;
+ mutex_lock(&td->lock);
+
if (td->enabled) {
dsi_bus_lock();
if (!td->cabc_broken)
@@ -452,6 +462,8 @@ static ssize_t store_cabc_mode(struct device *dev,
td->cabc_mode = i;
+ mutex_unlock(&td->lock);
+
return count;
}