Add a destroy function

2 files changed, 14 insertions, 0 deletions

diff --git a/libbacklight.c b/libbacklight.c
index e2aaae0..c2cc900 100644
--- a/libbacklight.c
+++ b/libbacklight.c
@@ -105,6 +105,17 @@ out:
 	return ret;
 }
 
+void backlight_destroy(struct backlight *backlight)
+{
+	if (!backlight)
+		return;
+
+	if (backlight->path)
+		free(backlight->path);
+
+	free(backlight);
+}
+
 struct backlight *backlight_init(struct pci_device *dev, int card,
 				 int connector_type, int connector_type_id)
 {
@@ -172,6 +183,8 @@ struct backlight *backlight_init(struct pci_device *dev, int card,
 		if (ret < 0)
 			goto out;
 
+		buffer[ret] = '\0';
+
 		parent = basename(buffer);
 
 		if (entry_type == BACKLIGHT_RAW) {
diff --git a/libbacklight.h b/libbacklight.h
index 20981bd..baf7e8a 100644
--- a/libbacklight.h
+++ b/libbacklight.h
@@ -13,6 +13,7 @@ struct backlight {
 	enum backlight_type type;
 };
 
+void backlight_destroy(struct backlight *backlight);
 struct backlight *backlight_init(struct pci_device *dev, int card,
 				 int connector_type, int connector_type_id);
 long backlight_get_brightness(struct backlight *backlight);