From: Bartosz Golaszewski <bartekgola@gmail.com>
Date: Fri, 23 Jun 2017 09:04:18 +0000 (+0200)
Subject: gpioset: improve error messages
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=d0da47f03053590d71ec3aa1781c6e44365ea3b5;p=qemu-gpiodev%2Flibgpiod.git

gpioset: improve error messages

Say more than just the name of the failed function.

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

diff --git a/src/tools/gpioset.c b/src/tools/gpioset.c
index ea890bd..7ac1f4d 100644
--- a/src/tools/gpioset.c
+++ b/src/tools/gpioset.c
@@ -100,11 +100,11 @@ static void wait_signal(void *data)
 
 	status = sigprocmask(SIG_BLOCK, &sigmask, NULL);
 	if (status < 0)
-		die("sigprocmask: %s", strerror(errno));
+		die("error blocking signals: %s", strerror(errno));
 
 	sigfd = signalfd(-1, &sigmask, 0);
 	if (sigfd < 0)
-		die("signalfd: %s", strerror(errno));
+		die("error creating signalfd: %s", strerror(errno));
 
 	memset(&pfd, 0, sizeof(pfd));
 	pfd.fd = sigfd;
@@ -115,7 +115,7 @@ static void wait_signal(void *data)
 	for (;;) {
 		status = poll(&pfd, 1, 1000 /* one second */);
 		if (status < 0)
-			die("poll: %s", strerror(errno));
+			die("error polling for signals: %s", strerror(errno));
 		else if (status > 0)
 			break;
 	}