[PATCH] qxl: Fix uninitialised struct field head.surface_id

[Colin King]

From: Colin Ian King <colin.k...@canonical.com>

The surface_id struct field in head is not being initialized and
static analysis warns that this is being passed through to
dev->monitors_config->heads[i] on an assignment. Clear up this
warning by initializing it to zero.

Addresses-Coverity: ("Uninitialized scalar variable")
Fixes: a6d3c4d79822 ("qxl: hook monitors_config updates into crtc, not 
encoder.")
Signed-off-by: Colin Ian King <colin.k...@canonical.com>
---
 drivers/gpu/drm/qxl/qxl_display.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/qxl/qxl_display.c 
b/drivers/gpu/drm/qxl/qxl_display.c
index 012bce0cdb65..10738e04c09b 100644
--- a/drivers/gpu/drm/qxl/qxl_display.c
+++ b/drivers/gpu/drm/qxl/qxl_display.c
@@ -328,6 +328,7 @@ static void qxl_crtc_update_monitors_config(struct drm_crtc 
*crtc,
 
        head.id = i;
        head.flags = 0;
+       head.surface_id = 0;
        oldcount = qdev->monitors_config->count;
        if (crtc->state->active) {
                struct drm_display_mode *mode = &crtc->mode;
-- 
2.30.0