Bommels05/Mozilla
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Zero out the return value from QI in case of failure.

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git-svn-id: svn://10.0.0.236/trunk@42875 18797224-902f-48f8-a5cc-f745e15eee43
This commit is contained in:
sfraser%netscape.com
1999-08-10 00:56:40 +00:00
parent 782d6aeac7
commit 5275ec0bd4
2 changed files with 4 additions and 1 deletions
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2
mozilla/view/src/nsScrollingView.cpp
View File

@@ -395,7 +395,7 @@ nsresult nsScrollingView::QueryInterface(const nsIID& aIID, void** aInstancePtr)
if (nsnull == aInstancePtr) {
return NS_ERROR_NULL_POINTER;
}
*aInstancePtr = nsnull;
if (aIID.Equals(kIScrollableViewIID)) {
*aInstancePtr = (void*)(nsIScrollableView*)this;
return NS_OK;

3
mozilla/view/src/nsView.cpp
View File

@@ -151,6 +151,9 @@ nsresult nsView :: QueryInterface(const nsIID& aIID, void** aInstancePtr)
if (nsnull == aInstancePtr) {
return NS_ERROR_NULL_POINTER;
}
*aInstancePtr = nsnull;
static NS_DEFINE_IID(kISupportsIID, NS_ISUPPORTS_IID);
static NS_DEFINE_IID(kClassIID, kIViewIID);