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NetworkPkg: update code for NULL pointer check.

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This patch updates the HTTP driver to initialize the local variable for NULL
and check the NULL pointer before dereference it.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Fu Siyuan <siyuan.fu@intel.com>
Reviewed-by: Ye Ting <ting.ye@intel.com>
Reviewed-by: Wu Jiaxin <jiaxin.wu@intel.com>
This commit is contained in:
Fu Siyuan 2016-05-23 11:02:01 +08:00
parent 26bd6437ca
commit 5646819ffb
1 changed files with 10 additions and 7 deletions
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17
NetworkPkg/HttpDxe/HttpImpl.c
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@ -253,6 +253,7 @@ EfiHttpRequest (
// Initializations
//
Url = NULL;
UrlParser = NULL;
HostName = NULL;
RequestMsg = NULL;
HostNameStr = NULL;
@ -1063,7 +1064,7 @@ HttpResponseWorker (
if (SizeofHeaders != 0) {
HeaderTmp = AllocateZeroPool (SizeofHeaders);
if (HeaderTmp == NULL) {
goto Error;
goto Error2;
}
CopyMem (HeaderTmp, Tmp, SizeofHeaders);
@ -1075,7 +1076,7 @@ HttpResponseWorker (
//
if (mHttpUtilities == NULL) {
Status = EFI_NOT_READY;
goto Error;
goto Error2;
}
//
@ -1089,7 +1090,7 @@ HttpResponseWorker (
&HttpMsg->HeaderCount
);
if (EFI_ERROR (Status)) {
goto Error;
goto Error2;
}
FreePool (HttpHeaders);
@ -1214,7 +1215,7 @@ HttpResponseWorker (
&HttpInstance->TimeoutEvent
);
if (EFI_ERROR (Status)) {
goto Error;
goto Error2;
}
}
@ -1223,7 +1224,7 @@ HttpResponseWorker (
//
Status = gBS->SetTimer (HttpInstance->TimeoutEvent, TimerRelative, HTTP_RESPONSE_TIMEOUT * TICKS_PER_SECOND);
if (EFI_ERROR (Status)) {
goto Error;
goto Error2;
}
//
@ -1234,7 +1235,7 @@ HttpResponseWorker (
gBS->SetTimer (HttpInstance->TimeoutEvent, TimerCancel, 0);
if (EFI_ERROR (Status)) {
goto Error;
goto Error2;
}
FreePool (Wrap);
@ -1258,7 +1259,9 @@ Exit:
return Status;
Error2:
NetMapInsertHead (&HttpInstance->TxTokens, ValueInItem->HttpToken, ValueInItem);
if (ValueInItem != NULL) {
NetMapInsertHead (&HttpInstance->TxTokens, ValueInItem->HttpToken, ValueInItem);
}
Error:
HttpTcpTokenCleanup (Wrap);