Fix segfault when running slideshow mode with !opt.display

Happens e.g. when using -O without enabling thumbnail/index mode

Closes #335

1 files changed, 4 insertions, 1 deletions

diff --git a/src/main.c b/src/main.c
index 605c113..840919f 100644
--- a/src/main.c
+++ b/src/main.c
@@ -73,11 +73,14 @@ int main(int argc, char **argv)
 		feh_wm_set_bg_filelist(opt.bgmode);
 		exit(0);
 	}
-	else {
+	else if (opt.display){
 		/* Slideshow mode is the default. Because it's spiffy */
 		opt.slideshow = 1;
 		init_slideshow_mode();
 	}
+	else {
+		eprintf("Invalid option combination");
+	}
 
 	/* main event loop */
 	while (feh_main_iteration(1));