palette: Fix an illegal read

Change-Id: I71649f0a85d98b96efd08c8a9e3ee7372fd7d327

diff --git a/vp9/common/vp9_palette.c b/vp9/common/vp9_palette.c
index 24996843feb59647b9e510ebe33b5e84999c5457..e303619ab3e6bda250a9f4cea29446126e437486 100644 (file)
--- a/vp9/common/vp9_palette.c
+++ b/vp9/common/vp9_palette.c
@@ -71,7 +71,7 @@ int run_lengh_encoding(uint8_t *seq, int n, uint16_t *runs, int max_run) {
     runs[l++] = symbol;
     this_run = 1;
     i++;
-    while (seq[i] == symbol && i < n) {
+    while (i < n && seq[i] == symbol) {
       i++;
       this_run++;
     }