From: Bartosz Golaszewski <bartekgola@gmail.com>
Date: Mon, 2 Jan 2017 13:55:25 +0000 (+0100)
Subject: core: release all lines in gpiod_chip_close()
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=b7ebb8e1c90739611999f66e720a291d2988e6cb;p=qemu-gpiodev%2Flibgpiod.git

core: release all lines in gpiod_chip_close()

This fixes a memory leak if the user forgets to explicitly release
requested lines.

Signed-off-by: Bartosz Golaszewski <bartekgola@gmail.com>
---

diff --git a/core.c b/core.c
index 077c116..cc72c4d 100644
--- a/core.c
+++ b/core.c
@@ -382,6 +382,13 @@ struct gpiod_chip * gpiod_chip_open_lookup(const char *descr)
 
 void gpiod_chip_close(struct gpiod_chip *chip)
 {
+	unsigned int i;
+
+	for (i = 0; i < chip->cinfo.lines; i++) {
+		if (chip->lines[i].requested)
+			gpiod_line_release(&chip->lines[i]);
+	}
+
 	close(chip->fd);
 	free(chip->lines);
 	free(chip);