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hmp: Fix drive_add ... format=help crash

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drive_new() returns null without setting an error when it provided
help.  add_init_drive() assumes null means failure, and crashes trying
to report a null error.

Fixes: c4f26c9f37
Cc: qemu-stable@nongnu.org
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Markus Armbruster 2019-04-08 17:30:03 +02:00 committed by Kevin Wolf
parent 3f48686fac
commit ab63817119
2 changed files with 2 additions and 1 deletions
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2
device-hotplug.c
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@ -48,7 +48,7 @@ static DriveInfo *add_init_drive(const char *optstr)
mc = MACHINE_GET_CLASS(current_machine);
dinfo = drive_new(opts, mc->block_default_type, &err);
if (!dinfo) {
if (err) {
error_report_err(err);
qemu_opts_del(opts);
return NULL;

1
tests/test-hmp.c
View file

@ -31,6 +31,7 @@ static const char *hmp_cmds[] = {
"cpu 0",
"device_add ?",
"device_add usb-mouse,id=mouse1",
"drive_add ignored format=help",
"mouse_button 7",
"mouse_move 10 10",
"mouse_button 0",