simple-shm: handle shm buffer failure
Do not segfault, if creating the shm buffer fails.
Signed-off-by: Pekka Paalanen <ppaalanen@gmail.com>
diff --git a/clients/simple-shm.c b/clients/simple-shm.c
index 65c0eae..850567d 100644
--- a/clients/simple-shm.c
+++ b/clients/simple-shm.c
@@ -101,6 +101,17 @@
struct window *window;
window = malloc(sizeof *window);
+
+ window->buffer = create_shm_buffer(display,
+ width, height,
+ WL_SHM_FORMAT_XRGB8888,
+ &window->shm_data);
+
+ if (!window->buffer) {
+ free(window);
+ return NULL;
+ }
+
window->callback = NULL;
window->display = display;
window->width = width;
@@ -108,10 +119,6 @@
window->surface = wl_compositor_create_surface(display->compositor);
window->shell_surface = wl_shell_get_shell_surface(display->shell,
window->surface);
- window->buffer = create_shm_buffer(display,
- width, height,
- WL_SHM_FORMAT_XRGB8888,
- &window->shm_data);
wl_shell_surface_set_toplevel(window->shell_surface);
@@ -293,6 +300,8 @@
display = create_display();
window = create_window(display, 250, 250);
+ if (!window)
+ return 1;
sigint.sa_handler = signal_int;
sigemptyset(&sigint.sa_mask);