Use statically allocated text buffer

common/pango.c

@@ -32,7 +32,7 @@ PangoLayout *get_pango_layout(cairo_t *cairo, const char *font,
 
 void get_text_size(cairo_t *cairo, const char *font, int *width, int *height,
 		int32_t scale, bool markup, const char *fmt, ...) {
-	char *buf = malloc(2048);
+	static char buf[2048];
 
 	va_list args;
 	va_start(args, fmt);
@@ -45,12 +45,11 @@ void get_text_size(cairo_t *cairo, const char *font, int *width, int *height,
 	pango_cairo_update_layout(cairo, layout);
 	pango_layout_get_pixel_size(layout, width, height);
 	g_object_unref(layout);
-	free(buf);
 }
 
 void pango_printf(cairo_t *cairo, const char *font,
 		int32_t scale, bool markup, const char *fmt, ...) {
-	char *buf = malloc(2048);
+	static char buf[2048];
 
 	va_list args;
 	va_start(args, fmt);
@@ -63,5 +62,4 @@ void pango_printf(cairo_t *cairo, const char *font,
 	pango_cairo_update_layout(cairo, layout);
 	pango_cairo_show_layout(cairo, layout);
 	g_object_unref(layout);
-	free(buf);
 }

sway/commands/bar.c

@@ -36,15 +36,15 @@ struct cmd_results *cmd_bar(int argc, char **argv) {
 	}
 
 	// set bar id
-	int i;
-	for (i = 0; i < config->bars->length; ++i) {
+	for (int i = 0; i < config->bars->length; ++i) {
 		if (bar == config->bars->items[i]) {
 			const int len = 5 + numlen(i); // "bar-" + i + \0
 			bar->id = malloc(len * sizeof(char));
 			if (bar->id) {
 				snprintf(bar->id, len, "bar-%d", i);
 			} else {
-				return cmd_results_new(CMD_FAILURE, "bar", "Unable to allocate bar ID");
+				return cmd_results_new(CMD_FAILURE,
+						"bar", "Unable to allocate bar ID");
 			}
 			break;
 		}