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Fix for crash on Windows if CUN is not reachable at start. Not tested

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git-svn-id: https://svn.fhem.de/fhem/trunk@2427 2b470e98-0d58-463d-a4d8-8e2adae1ed80
This commit is contained in:
rudolfkoenig 2013-01-04 06:57:32 +00:00
parent 59cadd74e4
commit ad0e5917b4
1 changed files with 5 additions and 2 deletions
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7
fhem/FHEM/00_CUL.pm
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@ -949,8 +949,11 @@ CUL_Ready($)
# This is relevant for windows/USB only
my $po = $hash->{USBDev};
my ($BlockingFlags, $InBytes, $OutBytes, $ErrorFlags) = $po->status;
return ($InBytes>0);
my ($BlockingFlags, $InBytes, $OutBytes, $ErrorFlags);
if($po) {
($BlockingFlags, $InBytes, $OutBytes, $ErrorFlags) = $po->status;
}
return ($InBytes && $InBytes>0);
}
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