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MYST3: Fix a theorical null pointer dereference

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This commit is contained in:
Bastien Bouclet 2013-04-21 15:54:08 +02:00
parent 0686251dd2
commit 81a5be7a2d
1 changed files with 3 additions and 0 deletions
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3
engines/myst3/menu.cpp
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@ -154,6 +154,9 @@ Dialog::Dialog(Myst3Engine *vm, uint id):
const DirectorySubEntry *movieDesc = _vm->getFileDescription("DLOG", id, 0, DirectorySubEntry::kDialogMovie);
const DirectorySubEntry *countDesc = _vm->getFileDescription("DLGI", id, 0, DirectorySubEntry::kNumMetadata);
if (!buttonsDesc || !movieDesc || !countDesc)
error("Unable to load dialog %d", id);
// Retrieve button count
_buttonCount = countDesc->getMiscData(0);
assert(_buttonCount <= 3);