From: Max Reitz <mre...@redhat.com>
If a driver supports image creation, it needs to set the .create_opts
field. We can use that to make sure .create_opts for both drivers
involved is not NULL for the target image in qemu-img convert, which is
important so that the create_opts pointer in img_convert() is not NULL
after the qemu_opts_append() calls and when going into
qemu_opts_create().
Cc: qemu-sta...@nongnu.org
Signed-off-by: Max Reitz <mre...@redhat.com>
Reviewed-by: Kevin Wolf <kw...@redhat.com>
Signed-off-by: Kevin Wolf <kw...@redhat.com>
(cherry picked from commit f75613cf2488a37fb8019bc32a06ddbcd477d0ce)
Signed-off-by: Michael Roth <mdr...@linux.vnet.ibm.com>
---
qemu-img.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/qemu-img.c b/qemu-img.c
index d4518e7..309c14b 100644
--- a/qemu-img.c
+++ b/qemu-img.c
@@ -1378,6 +1378,20 @@ static int img_convert(int argc, char **argv)
goto out;
}
+ if (!drv->create_opts) {
+ error_report("Format driver '%s' does not support image creation",
+ drv->format_name);
+ ret = -1;
+ goto out;
+ }
+
+ if (!proto_drv->create_opts) {
+ error_report("Protocol driver '%s' does not support image creation",
+ proto_drv->format_name);
+ ret = -1;
+ goto out;
+ }
+
create_opts = qemu_opts_append(create_opts, drv->create_opts);
create_opts = qemu_opts_append(create_opts, proto_drv->create_opts);
--
1.9.1
