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Fix uninit'd mem ref in mdb_page_split

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Don't compare cursors beyond their depth. (detected by valgrind)
vmware
Howard Chu 11 years ago
parent 6ecee1cbf9
commit eaeeecc3b2
1 changed files with 2 additions and 2 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
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  1. 4
      libraries/liblmdb/mdb.c

4
libraries/liblmdb/mdb.c
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@ -7653,7 +7653,7 @@ done:
m3->mc_snum++; m3->mc_snum++;
m3->mc_top++; m3->mc_top++;
} }
if (m3->mc_pg[mc->mc_top] == mp) { if (m3->mc_top >= mc->mc_top && m3->mc_pg[mc->mc_top] == mp) {
if (m3->mc_ki[mc->mc_top] >= newindx && !(nflags & MDB_SPLIT_REPLACE)) if (m3->mc_ki[mc->mc_top] >= newindx && !(nflags & MDB_SPLIT_REPLACE))
m3->mc_ki[mc->mc_top]++; m3->mc_ki[mc->mc_top]++;
if (m3->mc_ki[mc->mc_top] >= fixup) { if (m3->mc_ki[mc->mc_top] >= fixup) {
@ -7661,7 +7661,7 @@ done:
m3->mc_ki[mc->mc_top] -= fixup; m3->mc_ki[mc->mc_top] -= fixup;
m3->mc_ki[ptop] = mn.mc_ki[ptop]; m3->mc_ki[ptop] = mn.mc_ki[ptop];
} }
} else if (!did_split && m3->mc_pg[ptop] == mc->mc_pg[ptop] && } else if (!did_split && m3->mc_top >= ptop && m3->mc_pg[ptop] == mc->mc_pg[ptop] &&
m3->mc_ki[ptop] >= mc->mc_ki[ptop]) { m3->mc_ki[ptop] >= mc->mc_ki[ptop]) {
m3->mc_ki[ptop]++; m3->mc_ki[ptop]++;
} }

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