From: Eric Engestrom <eric.engestrom@imgtec.com>
Date: Thu, 15 Feb 2018 11:10:22 +0000 (+0000)
Subject: egl/wayland: check for invalid format index
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=65dda6c9ec1d80ee36c8bff157f49d97baffebce;p=mesa.git

egl/wayland: check for invalid format index

v2: just tell the compiler to assume the format will always be found, as
it comes from the table itself to begin with. (DanielS)

CID: 1429516
Fixes: d32b23f3830099a328b91 "egl/wayland: Add bpp to visual map"
Signed-off-by: Eric Engestrom <eric.engestrom@imgtec.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>
---

diff --git a/src/egl/drivers/dri2/platform_wayland.c b/src/egl/drivers/dri2/platform_wayland.c
index 5b8bec901b0..877f7933b9a 100644
--- a/src/egl/drivers/dri2/platform_wayland.c
+++ b/src/egl/drivers/dri2/platform_wayland.c
@@ -1452,6 +1452,8 @@ dri2_wl_swrast_get_stride_for_format(int format, int w)
 {
    int visual_idx = dri2_wl_visual_idx_from_shm_format(format);
 
+   assume(visual_idx != -1);
+
    return w * (dri2_wl_visuals[visual_idx].bpp / 8);
 }