passing a null pointer to free() is valid; sprinkle a few free->xfree.

ok oga@

2 files changed, 10 insertions, 12 deletions

diff --git a/client.c b/client.c
index cb226d5..33dbfa5 100644
--- a/client.c
+++ b/client.c
@@ -699,8 +699,7 @@ client_freehints(struct client_ctx *cc)
 		XFree(cc->app_name);
 	if (cc->app_class != NULL)
 		XFree(cc->app_class);
-	if (cc->app_cliarg != NULL)
-		xfree(cc->app_cliarg);
+	xfree(cc->app_cliarg);
 }
 
 static int
diff --git a/conf.c b/conf.c
index b8ecc40..4ca9507 100644
--- a/conf.c
+++ b/conf.c
@@ -170,35 +170,34 @@ conf_clear(struct conf *c)
 
 	while ((cmd = TAILQ_FIRST(&c->cmdq)) != NULL) {
 		TAILQ_REMOVE(&c->cmdq, cmd, entry);
-		free(cmd);
+		xfree(cmd);
 	}
 
 	while ((kb = TAILQ_FIRST(&c->keybindingq)) != NULL) {
 		TAILQ_REMOVE(&c->keybindingq, kb, entry);
-		free(kb);
+		xfree(kb);
 	}
 
 	while ((ag = TAILQ_FIRST(&c->autogroupq)) != NULL) {
 		TAILQ_REMOVE(&c->autogroupq, ag, entry);
-		free(ag->class);
+		xfree(ag->class);
 		if (ag->name)
-			free(ag->name);
-		free(ag->group);
-		free(ag);
+			xfree(ag->name);
+		xfree(ag->group);
+		xfree(ag);
 	}
 
 	while ((wm = TAILQ_FIRST(&c->ignoreq)) != NULL) {
 		TAILQ_REMOVE(&c->ignoreq, wm, entry);
-		free(wm);
+		xfree(wm);
 	}
 
 	while ((mb = TAILQ_FIRST(&c->mousebindingq)) != NULL) {
 		TAILQ_REMOVE(&c->mousebindingq, mb, entry);
-		free(mb);
+		xfree(mb);
 	}
 
-	if (c->DefaultFontName != NULL)
-		free(c->DefaultFontName);
+	xfree(c->DefaultFontName);
 }
 
 void