gpio: fix resource leaks

Signed-off-by: Sanjay Singh Rawat <sanjay.rawat@linaro.org>

1 files changed, 9 insertions, 1 deletions

diff --git a/gpio.c b/gpio.c
index 39480b0..3c02b8e 100644
--- a/gpio.c
+++ b/gpio.c
@@ -325,7 +325,7 @@ void export_free_gpios(void)
 	FILE *fgpio, *fgpio_export;
 	int i, gpio_max = 0;
 	char *line = NULL;
-	ssize_t read, len;
+	ssize_t read, len = 0;
 
 	fgpio = fopen("/sys/kernel/debug/gpio", "r");
 	if (!fgpio) {
@@ -353,7 +353,15 @@ void export_free_gpios(void)
 		if (system(command) < 0)
 			printf("error: failed to export gpio-%d\n", i);
 	}
+
+	free(line);
 out:
+	if (fgpio)
+		fclose(fgpio);
+
+	if (fgpio_export)
+		fclose(fgpio_export);
+
 	return;
 }