diff --git a/drivers/counter/counter-sysfs.c b/drivers/counter/counter-sysfs.c
index 92d3d4f549cb..7ce7c51395da 100644
--- a/drivers/counter/counter-sysfs.c
+++ b/drivers/counter/counter-sysfs.c
@@ -591,6 +591,46 @@ static int counter_comp_id_attr_create(struct device *const dev,
 	return 0;
 }
 
+static int counter_ext_attrs_create(struct device *const dev,
+				    struct counter_attribute_group *const group,
+				    const struct counter_comp *const ext,
+				    const enum counter_scope scope,
+				    void *const parent, const size_t id)
+{
+	int err;
+
+	/* Create main extension attribute */
+	err = counter_attr_create(dev, group, ext, scope, parent);
+	if (err < 0)
+		return err;
+
+	/* Create extension id attribute */
+	return counter_comp_id_attr_create(dev, group, ext->name, id);
+}
+
+static int counter_sysfs_exts_add(struct device *const dev,
+				  struct counter_attribute_group *const group,
+				  const struct counter_comp *const exts,
+				  const size_t num_ext,
+				  const enum counter_scope scope,
+				  void *const parent)
+{
+	size_t i;
+	const struct counter_comp *ext;
+	int err;
+
+	/* Create attributes for each extension */
+	for (i = 0; i < num_ext; i++) {
+		ext = &exts[i];
+		err = counter_ext_attrs_create(dev, group, ext, scope, parent,
+					       i);
+		if (err < 0)
+			return err;
+	}
+
+	return 0;
+}
+
 static struct counter_comp counter_signal_comp = {
 	.type = COUNTER_COMP_SIGNAL_LEVEL,
 	.name = "signal",
@@ -604,8 +644,6 @@ static int counter_signal_attrs_create(struct counter_device *const counter,
 	struct device *const dev = &counter->dev;
 	int err;
 	struct counter_comp comp;
-	size_t i;
-	struct counter_comp *ext;
 
 	/* Create main Signal attribute */
 	comp = counter_signal_comp;
@@ -619,21 +657,9 @@ static int counter_signal_attrs_create(struct counter_device *const counter,
 	if (err < 0)
 		return err;
 
-	/* Create an attribute for each extension */
-	for (i = 0; i < signal->num_ext; i++) {
-		ext = &signal->ext[i];
-
-		err = counter_attr_create(dev, cattr_group, ext, scope, signal);
-		if (err < 0)
-			return err;
-
-		err = counter_comp_id_attr_create(dev, cattr_group, ext->name,
-						  i);
-		if (err < 0)
-			return err;
-	}
-
-	return 0;
+	/* Add Signal extensions */
+	return counter_sysfs_exts_add(dev, cattr_group, signal->ext,
+				      signal->num_ext, scope, signal);
 }
 
 static int counter_sysfs_signals_add(struct counter_device *const counter,
@@ -718,8 +744,6 @@ static int counter_count_attrs_create(struct counter_device *const counter,
 	struct device *const dev = &counter->dev;
 	int err;
 	struct counter_comp comp;
-	size_t i;
-	struct counter_comp *ext;
 
 	/* Create main Count attribute */
 	comp = counter_count_comp;
@@ -742,21 +766,9 @@ static int counter_count_attrs_create(struct counter_device *const counter,
 	if (err < 0)
 		return err;
 
-	/* Create an attribute for each extension */
-	for (i = 0; i < count->num_ext; i++) {
-		ext = &count->ext[i];
-
-		err = counter_attr_create(dev, cattr_group, ext, scope, count);
-		if (err < 0)
-			return err;
-
-		err = counter_comp_id_attr_create(dev, cattr_group, ext->name,
-						  i);
-		if (err < 0)
-			return err;
-	}
-
-	return 0;
+	/* Add Count extensions */
+	return counter_sysfs_exts_add(dev, cattr_group, count->ext,
+				      count->num_ext, scope, count);
 }
 
 static int counter_sysfs_counts_add(struct counter_device *const counter,
@@ -849,8 +861,6 @@ static int counter_sysfs_attr_add(struct counter_device *const counter,
 	const enum counter_scope scope = COUNTER_SCOPE_DEVICE;
 	struct device *const dev = &counter->dev;
 	int err;
-	size_t i;
-	struct counter_comp *ext;
 
 	/* Add Signals sysfs attributes */
 	err = counter_sysfs_signals_add(counter, cattr_group);
@@ -887,19 +897,9 @@ static int counter_sysfs_attr_add(struct counter_device *const counter,
 	if (err < 0)
 		return err;
 
-	/* Create an attribute for each extension */
-	for (i = 0; i < counter->num_ext; i++) {
-		ext = &counter->ext[i];
-
-		err = counter_attr_create(dev, cattr_group, ext, scope, NULL);
-		if (err < 0)
-			return err;
-
-		err = counter_comp_id_attr_create(dev, cattr_group, ext->name,
-						  i);
-		if (err < 0)
-			return err;
-	}
+	/* Add device extensions */
+	return counter_sysfs_exts_add(dev, cattr_group, counter->ext,
+				      counter->num_ext, scope, NULL);
 
 	return 0;
 }
