get rid of perror() calls, use ERROR() instead

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

3 files changed, 4 insertions, 8 deletions

diff --git a/hotplug.c b/hotplug.c
index 6583de4..ac54da4 100644
--- a/hotplug.c
+++ b/hotplug.c
@@ -422,13 +422,11 @@ void hotplug(char *rules)
 	nls.nl_groups = -1;
 
 	if ((hotplug_fd.fd = socket(PF_NETLINK, SOCK_DGRAM | SOCK_CLOEXEC, NETLINK_KOBJECT_UEVENT)) == -1) {
-		ERROR("Failed to open hotplug socket\n");
-		perror("socket");
+		ERROR("Failed to open hotplug socket: %s\n", strerror(errno));
 		exit(1);
 	}
 	if (bind(hotplug_fd.fd, (void *)&nls, sizeof(struct sockaddr_nl))) {
-		ERROR("Failed to bind hotplug socket\n");
-		perror("socket");
+		ERROR("Failed to bind hotplug socket: %s\n", strerror(errno));
 		exit(1);
 	}
 
diff --git a/mkdev.c b/mkdev.c
index c502f70..d507939 100644
--- a/mkdev.c
+++ b/mkdev.c
@@ -109,10 +109,8 @@ int mkdev(const char *name, int _mode)
 {
 	char *pattern;
 
-	if (chdir("/dev")) {
-		perror("chdir");
+	if (chdir("/dev"))
 		return 1;
-	}
 
 	pattern = add_pattern(name);
 	patterns = &pattern;
diff --git a/watchdog.c b/watchdog.c
index 98961d3..0ba8f25 100644
--- a/watchdog.c
+++ b/watchdog.c
@@ -36,7 +36,7 @@ static void watchdog_timeout_cb(struct uloop_timeout *t)
 {
 	DEBUG(2, "Ping\n");
 	if (write(wdt_fd, "X", 1) < 0)
-		perror("WDT failed to write\n");
+		ERROR("WDT failed to write: %s\n", strerror(errno));
 	uloop_timeout_set(t, wdt_frequency * 1000);
 }