cmd_background: fix leak on error

Found through static analysis.

1 files changed, 2 insertions, 1 deletions

diff --git a/sway/commands/output/background.c b/sway/commands/output/background.c
index 55cbdff0..65b5f902 100644
--- a/sway/commands/output/background.c
+++ b/sway/commands/output/background.c
@@ -81,8 +81,9 @@ struct cmd_results *output_cmd_background(int argc, char **argv) {
                         // src file is inside configuration dir
 
                         char *conf = strdup(config->current_config);
-                        if(!conf) {
+                        if (!conf) {
                                 wlr_log(L_ERROR, "Failed to duplicate string");
+                                free(src);
                                 return cmd_results_new(CMD_FAILURE, "output",
                                                 "Unable to allocate resources");
                         }