Overview:
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Dereference a pointer after null check
 

Description:
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File: http://cgit.freedesktop.org/wayland/wayland/tree/src/wayland-server.c
Line: 783

client->display_resource is NULL and client is passed as argument as below
wl_client_post_no_memory(client);

Line: 515
client->display_resource (NULL) is passed as argument
wl_resource_post_error(client->display_resource, WL_DISPLAY_ERROR_NO_MEMORY, "no memory");

Line: 210
struct wl_client *client = resource->client;
resource is NULL so dereferencing a NULL pointer.

Expected:
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NULL checking required before dereferencing