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Add some extra cancel_func protection to QEMUInstall 

In livemedia-creator's usage of this it can never pass in None, but if
someone were to import the library and use it, it would crash with
NoneType. So add the extra checks to make sure cancel_func isn't None,
just in case.
This commit is contained in:
Brian C. Lane 2019-02-19 08:43:21 -08:00
parent d64a320ba1
commit 9041174142
1 changed files with 2 additions and 2 deletions
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4
src/pylorax/installer.py
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@ -248,7 +248,7 @@ class QEMUInstall(object):
log.debug(qemu_cmd)
try:
execWithRedirect(qemu_cmd[0], qemu_cmd[1:], reset_lang=False, raise_err=True,
callback=lambda p: not cancel_func())
callback=lambda p: not (cancel_func and cancel_func()))
except subprocess.CalledProcessError as e:
log.error("Running qemu failed:")
log.error("cmd: %s", " ".join(e.cmd))
@ -262,7 +262,7 @@ class QEMUInstall(object):
if boot_uefi and ovmf_path:
os.unlink(ovmf_vars)
if cancel_func():
if cancel_func and cancel_func():
log.error("Installation error detected. See logfile for details.")
raise InstallError("QEMUInstall failed")
else: