D14920: KCompressionDevice: don't call write after WriteError

[David Faure]

dfaure created this revision.
dfaure added a reviewer: cullmann.
Herald added a project: Frameworks.
Herald edited subscribers, added: kde-frameworks-devel; removed: Frameworks.
dfaure requested review of this revision.

REVISION SUMMARY
  if an earlier call to write failed, then there is no point in
  doing the final write call, it even asserts in the NoneFilter.

TEST PLAN
  This fixes saving to full disk using a KCompressionDevice set
  up with KNoneFilter, in kwrite.
  
  BUG: 397545

REPOSITORY
  R243 KArchive

BRANCH
  master

REVISION DETAIL
  https://phabricator.kde.org/D14920

AFFECTED FILES
  src/kcompressiondevice.cpp

To: dfaure, cullmann
Cc: kde-frameworks-devel, michaelh, ngraham, bruns
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