tree ecec50e0e8f301ed865f9c1e40d8a9fd030f532a
parent f75613cf2488a37fb8019bc32a06ddbcd477d0ce
author Max Reitz <mreitz@redhat.com> 1417541567 +0100
committer Kevin Wolf <kwolf@redhat.com> 1418203880 +0100

qemu-img: Check create_opts before image amendment

The image options which can be amended are described by the .create_opts
field for every driver. This field must therefore be non-NULL so that
anything can be amended in the first place. Check that this holds true
before going into qemu_opts_create() (because if .create_opts is NULL,
the create_opts pointer in img_amend() will be NULL after
qemu_opts_append()).

Cc: qemu-stable@nongnu.org
Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>