diff --git a/AUTHORS b/AUTHORS
index 1a71664..82e1d05 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -1,12 +1,20 @@
 Main author and maintainer:
 	John Tsiombikas <nuclear@member.fsf.org>
 
-Serial device support (libsball):
-	John E. Stone <j.stone@acm.org>	
-
 Contributors:
-	Doug LaRue, Krister Svanlun, Hans Meine, Jaroslaw Bulat, Pavel Frolov,
-	Robert Haschke, David Lister
+	Doug LaRue
+	Krister Svanlun
+	Hans Meine
+	Jaroslaw Bulat
+	Pavel Frolov,
+	Robert Haschke
+	David Lister
+	Stephen Hurd
+	Gaël Écorchard
+	Alberto Fanjul
+
+Serial device support in early versions (before the v0.8 rewrite):
+	John E. Stone <j.stone@acm.org>	
 
 NOTE: This file has been left untended for quite a while. There are bound to be
 contributions from people not listed here. If you ever contributed code to this
diff --git a/src/cfgfile.c b/src/cfgfile.c
index 72b27e5..c5c4a43 100644
--- a/src/cfgfile.c
+++ b/src/cfgfile.c
@@ -153,6 +153,7 @@ int read_cfg(const char *fname, struct cfg *cfg)
 	if(!num_lines) num_lines = 1;
 
 	/* add enough lines to be able to append any number of new options */
+	free(cfglines);
 	if(!(cfglines = calloc(num_lines + NUM_EXTRA_LINES, sizeof *cfglines))) {
 		logmsg(LOG_WARNING, "failed to allocate config lines buffer (%d lines)\n", num_lines);
 		unlock_cfgfile(fd);
diff --git a/src/dev.c b/src/dev.c
index 4186a10..b44bcfb 100644
--- a/src/dev.c
+++ b/src/dev.c
@@ -118,9 +118,9 @@ void init_devices_serial(void)
 			strcpy(dev->path, cfg.serial_dev);
 			if(open_dev_serial(dev) == -1) {
 				remove_device(dev);
-			} else {
-				logmsg(LOG_INFO, "using device: %s\n", cfg.serial_dev);
+				return;
 			}
+			logmsg(LOG_INFO, "using device: %s\n", cfg.serial_dev);
 
 			/* new serial device added, send device change event */
 			ev.dev.type = EVENT_DEV;
diff --git a/src/proto_x11.c b/src/proto_x11.c
index 86dd82d..07d4ad2 100644
--- a/src/proto_x11.c
+++ b/src/proto_x11.c
@@ -224,7 +224,7 @@ int get_x11_socket(void)
 void send_xevent(spnav_event *ev, struct client *c)
 {
 	int i;
-	XEvent xevent;
+	XEvent xevent = {0};
 
 	if(!dpy) return;
 
@@ -396,18 +396,19 @@ static int xerr(Display *dpy, XErrorEvent *err)
 {
 	char buf[512];
 
-	if(verbose) {
-		logmsg(LOG_ERR, "xerr(%p, %p)\n", (void*)dpy, (void*)err);
-	}
-
 	if(err->error_code == BadWindow) {
+		if(verbose) {
+			logmsg(LOG_INFO, "Caught BadWindow, dropping client with window: %x\n",
+					(unsigned int)err->resourceid);
+		}
 		/* we may get a BadWindow error when trying to send events to
 		 * clients that have disconnected in the meanwhile.
 		 */
 		remove_client_window((Window)err->resourceid);
 	} else {
 		XGetErrorText(dpy, err->error_code, buf, sizeof buf);
-		logmsg(LOG_ERR, "Caught unexpected X error: %s\n", buf);
+		logmsg(LOG_ERR, "Caught unexpected X error: %s [op: %d,%d, res: %u]\n", buf,
+				(int)err->request_code, (int)err->minor_code, (unsigned int)err->resourceid);
 	}
 	return 0;
 }