volume: Catch xfer_size==0 condition in cache_block()

streaksu · Dec 29, 2021 · 97eaf27 · 97eaf27
1 parent 63c3f48
commit 97eaf27
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/stage23/lib/part.s2.c b/stage23/lib/part.s2.c
@@ -38,6 +38,9 @@ static bool cache_block(struct volume *volume, uint64_t block) {
                            first_sect + block * volume->fastest_xfer_size,
                            xfer_size)) {
         xfer_size--;
+        if (xfer_size == 0) {
+            return false;
+        }
     }
 
     volume->cache_status = CACHE_READY;