clients: close unused keymap fd

In the simple examples in which keymap is not handled, the open
descriptor has to be properly closed.

After each suspend/resume sequence the keymap is send again to
every client. On client weston-simple-egl the leak causes a
segfault when no more file descriptors can be opened.

Close the file descriptor and lazily copy/paste the comment
already available in simple-dmabuf-v4l.

Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
(cherry picked from commit 4071225cdc)

clients/multi-resource.c

@@ -296,6 +296,8 @@ static void
 keyboard_handle_keymap(void *data, struct wl_keyboard *keyboard,
 		       uint32_t format, int fd, uint32_t size)
 {
+	/* Just so we don’t leak the keymap fd */
+	close(fd);
 }
 
 static void

clients/simple-egl.c

@@ -640,6 +640,8 @@ static void
 keyboard_handle_keymap(void *data, struct wl_keyboard *keyboard,
 		       uint32_t format, int fd, uint32_t size)
 {
+	/* Just so we don’t leak the keymap fd */
+	close(fd);
 }
 
 static void

clients/weston-info.c

@@ -32,6 +32,7 @@
 #include <time.h>
 #include <assert.h>
 #include <ctype.h>
+#include <unistd.h>
 
 #include <wayland-client.h>
 
@@ -463,6 +464,8 @@ static void
 keyboard_handle_keymap(void *data, struct wl_keyboard *keyboard,
 		       uint32_t format, int fd, uint32_t size)
 {
+	/* Just so we don’t leak the keymap fd */
+	close(fd);
 }
 
 static void