From: Bartosz Golaszewski <bartekgola@gmail.com>
Date: Wed, 11 Jan 2017 10:11:06 +0000 (+0100)
Subject: gpioinfo: check for errors when iterating over gpiochips
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=c56f7d8982c8be02306ebe068b6aba53487300c7;p=qemu-gpiodev%2Flibgpiod.git

gpioinfo: check for errors when iterating over gpiochips

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

diff --git a/gpioinfo.c b/gpioinfo.c
index 876d1c3..b403a96 100644
--- a/gpioinfo.c
+++ b/gpioinfo.c
@@ -177,8 +177,13 @@ int main(int argc, char **argv)
 		if (!chip_iter)
 			die_perror("error accessing GPIO chips");
 
-		gpiod_foreach_chip(chip_iter, chip)
+		gpiod_foreach_chip(chip_iter, chip) {
+			if (gpiod_chip_iter_iserr(chip_iter))
+				die_perror("error accessing gpiochip %s",
+				    gpiod_chip_iter_failed_chip(chip_iter));
+
 			list_lines(chip);
+		}
 
 		gpiod_chip_iter_free(chip_iter);
 	} else {