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* Avoid null pointer reference if configuration dialog is canceled

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(fixes #5988).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36809 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Michael Pfeiffer 2010-05-14 09:20:55 +00:00
parent 1c47e8e40c
commit 13dfd6ccca
1 changed files with 9 additions and 3 deletions
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12
src/add-ons/print/transports/hp_jetdirect/HPJetDirectTransport.cpp
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@ -77,13 +77,15 @@ HPJetDirectPort::HPJetDirectPort(BDirectory* printer, BMessage *msg)
} else {
BAlert *alert = new BAlert("", "Can't connect to HP JetDirect printer port!", "OK");
alert->Go();
fReady = B_ERROR;
};
}
HPJetDirectPort::~HPJetDirectPort()
{
fEndpoint->Close();
if (fEndpoint)
fEndpoint->Close();
delete fEndpoint;
}
@ -92,7 +94,9 @@ ssize_t
HPJetDirectPort::Read(void* buffer, size_t size)
{
// printf("HPJetDirectPort::Read(%ld bytes)\n", size);
return (ssize_t) fEndpoint->Receive(buffer, size);
if (fEndpoint)
return (ssize_t) fEndpoint->Receive(buffer, size);
return 0;
}
@ -100,6 +104,8 @@ ssize_t
HPJetDirectPort::Write(const void* buffer, size_t size)
{
// printf("HPJetDirectPort::Write(%ld bytes)\n", size);
return (ssize_t) fEndpoint->Send(buffer, size);
if (fEndpoint)
return (ssize_t) fEndpoint->Send(buffer, size);
return 0;
}