1 files changed, 5 insertions, 5 deletions
diff --git a/hw/display/edid-generate.c b/hw/display/edid-generate.c
index b70ab1557e..bdd01571fc 100644
--- a/hw/display/edid-generate.c
+++ b/hw/display/edid-generate.c
@@ -159,17 +159,17 @@ static void edid_fill_modes(uint8_t *edid, uint8_t *xtra3, uint8_t *dta,
     }
 }
 
-static void edid_checksum(uint8_t *edid)
+static void edid_checksum(uint8_t *edid, size_t len)
 {
     uint32_t sum = 0;
     int i;
 
-    for (i = 0; i < 127; i++) {
+    for (i = 0; i < len; i++) {
         sum += edid[i];
     }
     sum &= 0xff;
     if (sum) {
-        edid[127] = 0x100 - sum;
+        edid[len] = 0x100 - sum;
     }
 }
 
@@ -474,9 +474,9 @@ void qemu_edid_generate(uint8_t *edid, size_t size,
 
     /* =============== finish up =============== */
 
-    edid_checksum(edid);
+    edid_checksum(edid, 127);
     if (dta) {
-        edid_checksum(dta);
+        edid_checksum(dta, 127);
     }
 }