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-rw-r--r--backend/drm/drm.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/backend/drm/drm.c b/backend/drm/drm.c
index fe989e38..b62de849 100644
--- a/backend/drm/drm.c
+++ b/backend/drm/drm.c
@@ -501,8 +501,9 @@ static bool drm_connector_commit(struct wlr_output *output) {
static void fill_empty_gamma_table(size_t size,
uint16_t *r, uint16_t *g, uint16_t *b) {
+ assert(0xFFFF < UINT64_MAX / (size - 1));
for (uint32_t i = 0; i < size; ++i) {
- uint16_t val = (uint32_t)0xffff * i / (size - 1);
+ uint16_t val = (uint64_t)0xffff * i / (size - 1);
r[i] = g[i] = b[i] = val;
}
}