From 5e676ac67171b93b0bd6be5d5b801087f305b2d5 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Marcin=20=C5=9Alusarz?= <marcin.slusarz@intel.com>
Date: Thu, 30 Jul 2020 14:40:21 +0200
Subject: [PATCH] iris: verify color component width in
 convert_fast_clear_color
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Coverity complains about possible 2^32-1 bit shift.

Signed-off-by: Marcin Ślusarz <marcin.slusarz@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6126>
---
 src/gallium/drivers/iris/iris_clear.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/gallium/drivers/iris/iris_clear.c b/src/gallium/drivers/iris/iris_clear.c
index cf0699726fd..4171a876c76 100644
--- a/src/gallium/drivers/iris/iris_clear.c
+++ b/src/gallium/drivers/iris/iris_clear.c
@@ -163,6 +163,7 @@ convert_fast_clear_color(struct iris_context *ice,
       for (int i = 0; i < 4; i++) {
          unsigned bits = util_format_get_component_bits(
             format, UTIL_FORMAT_COLORSPACE_RGB, i);
+         assert(bits > 0);
          if (bits < 32) {
             int32_t max = (1 << (bits - 1)) - 1;
             int32_t min = -(1 << (bits - 1));
-- 
2.30.2