vaapi-recorder: Don't leak drm fd

Make vaapi_recorder take onwership of the fd and close it at destroy
time.

src/compositor-drm.c

@@ -2523,7 +2523,6 @@ recorder_binding(struct weston_seat *seat, uint32_t time, uint32_t key,
 		weston_log("[libva recorder] initialized\n");
 	} else {
 		vaapi_recorder_destroy(output->recorder);
-		/* FIXME: close drm fd passed to recorder */
 		output->recorder = NULL;
 
 		output->base.disable_planes--;

src/vaapi-recorder.c

@@ -87,7 +87,7 @@
 #define PROFILE_IDC_HIGH        100
 
 struct vaapi_recorder {
-	int output_fd;
+	int drm_fd, output_fd;
 	int width, height;
 	int frame_count;
 
@@ -942,6 +942,7 @@ vaapi_recorder_create(int drm_fd, int width, int height, const char *filename)
 
 	r->width = width;
 	r->height = height;
+	r->drm_fd = drm_fd;
 
 	flags = O_WRONLY | O_CREAT | O_TRUNC | O_CLOEXEC;
 	r->output_fd = open(filename, flags, 0644);
@@ -1000,6 +1001,7 @@ vaapi_recorder_destroy(struct vaapi_recorder *r)
 	vaTerminate(r->va_dpy);
 
 	close(r->output_fd);
+	close(r->drm_fd);
 
 	free(r);
 }