40ed35a3c4
The out label has the qemu_progress_end() and other cleanup calls.
Always goto out in error paths so the cleanup happens. These error
paths now return 1 instead of -1.
Note that bdrv_unref(NULL) is safe. We just need to initialize bs to
NULL at the top of the function.
We can now remove the obsolete bs_old_backing = NULL and bs_new_backing
= NULL for safe mode. Originally it was necessary in commit 3e85c6fd
("qemu-img rebase") but became useless in commit c2abcce ("qemu-img:
avoid calling exit(1) to release resources properly") because the
variables are already initialized during declaration.
Reported-by: John Snow <jsnow@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Read the documentation in qemu-doc.html or on http://wiki.qemu-project.org - QEMU team