From 84dd592090dad1f54d9e4fed8a8e731f78ebec78 Mon Sep 17 00:00:00 2001 From: Pierre Schweitzer Date: Sun, 7 Apr 2013 11:35:50 +0000 Subject: [PATCH] [KS] Check parameters before using them and not after svn path=/trunk/; revision=58711 --- reactos/drivers/ksfilter/ks/event.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/reactos/drivers/ksfilter/ks/event.c b/reactos/drivers/ksfilter/ks/event.c index aa3b5ef4e9a..460f995f6c3 100644 --- a/reactos/drivers/ksfilter/ks/event.c +++ b/reactos/drivers/ksfilter/ks/event.c @@ -421,18 +421,18 @@ KspDisableEvent( PKSEVENT_ENTRY EventEntry; PLIST_ENTRY Entry; - /* get current irp stack location */ - IoStack = IoGetCurrentIrpStackLocation(Ctx->Irp); - - /* get event data */ - EventData = (PKSEVENTDATA)IoStack->Parameters.DeviceIoControl.Type3InputBuffer; - if (!Ctx || !Ctx->List || !Ctx->FileObject || !Ctx->Irp) { /* invalid parameter */ return FALSE; } + /* get current irp stack location */ + IoStack = IoGetCurrentIrpStackLocation(Ctx->Irp); + + /* get event data */ + EventData = (PKSEVENTDATA)IoStack->Parameters.DeviceIoControl.Type3InputBuffer; + /* point to first entry */ Entry = Ctx->List->Flink;