commit da4b51ba32bf28ffc5c47ca290ee920b030a7f72
author Bill Yi <byi@google.com> Tue Jan 05 18:27:49 2021 -0800
committer Bill Yi <byi@google.com> Tue Jan 05 18:27:49 2021 -0800
tree 2a3d4a6e943e19889957188c2fad2bf247321b31
parent 5c854db65c5446950a4a213e874fd08b9378ecf9
parent fc7489973cccb411e2472963801e652ca1500ab5

Merge RQ1A.210105.003 to aosp-master - DO NOT MERGE

Merged-In: I77e4f30cdea1d0e938a0693d70b27796294a75be
Change-Id: I45d2d1b2b51d7714187d23adc9a77ea70fe8581a

basicmbr.cc

diff --git a/basicmbr.cc b/basicmbr.cc
index 8ac9789..e9ac5c5 100644
--- a/basicmbr.cc
+++ b/basicmbr.cc
@@ -292,7 +292,8 @@
          if (EbrLocations[i] == offset) { // already read this one; infinite logical partition loop!
             cerr << "Logical partition infinite loop detected! This is being corrected.\n";
             allOK = -1;
-            partNum -= 1;
+            if(partNum > 0) //don't go negative
+                partNum -= 1;
          } // if
       } // for
       EbrLocations[partNum] = offset;