[PATCH xserver] modesetting: Fix uninitialized memory usage in drmmode_crtc_get_fb_id()

[Lyude Paul]

This really sucked to find out :(

Signed-off-by: Lyude Paul <lyude at redhat.com>
---
 hw/xfree86/drivers/modesetting/drmmode_display.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/hw/xfree86/drivers/modesetting/drmmode_display.c b/hw/xfree86/drivers/modesetting/drmmode_display.c
index 375be4234..e27139d0e 100644
--- a/hw/xfree86/drivers/modesetting/drmmode_display.c
+++ b/hw/xfree86/drivers/modesetting/drmmode_display.c
@@ -604,6 +604,8 @@ drmmode_crtc_get_fb_id(xf86CrtcPtr crtc, uint32_t *fb_id, int *x, int *y)
     drmmode_ptr drmmode = drmmode_crtc->drmmode;
     int ret;
 
+    *fb_id = 0;
+
     if (drmmode_crtc->prime_pixmap) {
         if (!drmmode->reverse_prime_offload_mode) {
             msPixmapPrivPtr ppriv =
-- 
2.17.1