Segmentation Fault bei Struktur

[tupolew.eljam]

Ich habe ein Problem mit der Speicherreservierung von einer Struktur. Compilieren funktioniert problemlos nur beim Ausführen kommt es zu Problemen.

#include <gtk/gtk.h>
#include <stdio.h>
#include <stdlib.h>

struct File {
	FILE *file;
	GtkWidget *label;
	GtkWidget *textfield;
	GtkTextBuffer *textbuffer;
	GtkWidget *dialog;
	long size;
	char *buffer;
};

struct File *file[2];
GtkWidget *grid;
GtkWidget *window;

void initWindow();

struct File *initFile() {
	struct File *file = (struct File *)malloc(1*sizeof(struct File));
	file->file = NULL;	
	file->textbuffer = gtk_text_buffer_new(NULL);
	file->textfield = gtk_text_view_new_with_buffer(file->textbuffer);
	file->label = gtk_label_new(NULL);

}

int main(int argc, char *argv[]) {
	initWindow();

	file[0] = initFile();
	file[1] = initFile();

	grid = gtk_grid_new();

	gtk_container_add(GTK_CONTAINER(window), grid);

	/*Hier kommt es beim ausführen zum Segmentation Fault*/
	gtk_grid_attach(GTK_GRID(grid), file[0]->label, 0, 0, 1, 1);
	gtk_grid_attach(GTK_GRID(grid), file[0]->textfield, 1, 0, 1, 1);

	gtk_widget_show_all(window);
	gtk_main();
	return 0;
}

void initWindow() {
	gtk_init(NULL, NULL);
	window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
	gtk_window_set_title (GTK_WINDOW (window), "gtkDiff");
	gtk_window_set_default_size(GTK_WINDOW(window), 300, 280);
	g_signal_connect (window, "destroy", G_CALLBACK (gtk_main_quit), NULL);
	gtk_container_set_border_width (GTK_CONTAINER (window), 10);
}

[DirkB]

Du musst auch die Compilerwarnungen beachten.

In Zeile 28 fehlt ein return file .