From daeab2d4a5ba67c3dd29c232132f433cbfd2c1a6 Mon Sep 17 00:00:00 2001
From: "shaver%mozilla.org"
 <shaver%mozilla.org@18797224-902f-48f8-a5cc-f745e15eee43>
Date: Fri, 10 Dec 2004 10:00:17 +0000
Subject: [PATCH] A caller may ask us to set a date-valued property to null. 
 Rebuff them gently, instead of wetting the floor.

git-svn-id: svn://10.0.0.236/trunk@166550 18797224-902f-48f8-a5cc-f745e15eee43
---
 mozilla/calendar/base/src/calICSService.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/mozilla/calendar/base/src/calICSService.cpp b/mozilla/calendar/base/src/calICSService.cpp
index 7e019e6a4d9..18d97d916ba 100644
--- a/mozilla/calendar/base/src/calICSService.cpp
+++ b/mozilla/calendar/base/src/calICSService.cpp
@@ -335,6 +335,8 @@ NS_IMETHODIMP                                                           \
 calIcalComponent::Set##Attrname(calIDateTime *dt)                       \
 {                                                                       \
     struct icaltimetype itt;                                            \
+    if (!dt)                                                            \
+        return NS_ERROR_INVALID_ARG;                                    \
     dt->ToIcalTime(&itt);                                               \
     icalvalue *val = icalvalue_new_datetime(itt);                       \
     if (!val)                                                           \