[libunicap/f12/master] (5 commits) ...Merge remote branch 'origin/master' into f12

[Robert Scheck]

Summary of changes:

  5b05558... fix some memory errors in the code (*)
  1eeeb56... avoid SIGSEGV in v4l2_capture_start() (#641623) (*)
  dd89f38... do not use "private" as identifier in a public header (#642 (*)
  ceb7729... Use ATTRS rather SYSFS for udev where appropriate (#643729) (*)
  81fbf8f... Merge remote branch 'origin/master' into f12

(*) This commit already existed in another branch; no separate mail sent