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Bug 367704 - crash [@ nsAccessible::GetPreviousSibling] on a nsRootAccessible

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p=Mook <mook.moz+mozbz@gmail.com>
r=aaronleventhal
This commit is contained in:
asqueella%gmail.com 2007-03-07 19:54:31 +00:00
parent 0cb1771f10
commit ae7b43a688
1 changed files with 1 additions and 1 deletions
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2
accessible/src/base/nsAccessible.cpp
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@ -594,7 +594,7 @@ NS_IMETHODIMP nsAccessible::GetPreviousSibling(nsIAccessible * *aPreviousSibling
}
nsCOMPtr<nsIAccessible> parent;
if (NS_FAILED(GetParent(getter_AddRefs(parent)))) {
if (NS_FAILED(GetParent(getter_AddRefs(parent))) || !parent) {
return NS_ERROR_FAILURE;
}