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monitor usb: Inline monitor_read_bdrv_key_start()'s first part 

monitor_read_bdrv_key_start() does several things:

1. If no key is needed, call completion_cb() and succeed

2. If we're in QMP context, call qerror_report_err() and fail

3. Start reading the key in the monitor.

This is two things too many.  Inline 1. and 2. into its callers
monitor_read_block_device_key() and usb_msd_realize_storage().

Since monitor_read_block_device_key() only ever runs in HMP context,
drop 2. there.

The next commit will clean up the result in usb_msd_realize_storage().

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Markus Armbruster 2015-03-12 17:26:48 +01:00 committed by Gerd Hoffmann
parent 988e0f0662
commit 9b14e0efcc
2 changed files with 22 additions and 20 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
hw/usb/dev-storage.c
View File

@ -641,8 +641,17 @@ static void usb_msd_realize_storage(USBDevice *dev, Error **errp)
if (bdrv_key_required(blk_bs(blk))) { if (bdrv_key_required(blk_bs(blk))) {
if (cur_mon) { if (cur_mon) {
bdrv_add_key(blk_bs(blk), NULL, &err);
if (!err) {
usb_msd_password_cb(s, 0);
} else if (monitor_cur_is_qmp()) {
qerror_report_err(err);
error_free(err);
} else {
error_free(err);
monitor_read_bdrv_key_start(cur_mon, blk_bs(blk), monitor_read_bdrv_key_start(cur_mon, blk_bs(blk),
usb_msd_password_cb, s); usb_msd_password_cb, s);
}
s->dev.auto_attach = 0; s->dev.auto_attach = 0;
} else { } else {
autostart = 0; autostart = 0;

27
monitor.c
View File

@ -5377,25 +5377,8 @@ int monitor_read_bdrv_key_start(Monitor *mon, BlockDriverState *bs,
BlockCompletionFunc *completion_cb, BlockCompletionFunc *completion_cb,
void *opaque) void *opaque)
{ {
Error *local_err = NULL;
int err; int err;
bdrv_add_key(bs, NULL, &local_err);
if (!local_err) {
if (completion_cb)
completion_cb(opaque, 0);
return 0;
}
/* Need a key for @bs */
if (monitor_ctrl_mode(mon)) {
qerror_report_err(local_err);
error_free(local_err);
return -1;
}
error_free(local_err);
monitor_printf(mon, "%s (%s) is encrypted.\n", bdrv_get_device_name(bs), monitor_printf(mon, "%s (%s) is encrypted.\n", bdrv_get_device_name(bs),
bdrv_get_encrypted_filename(bs)); bdrv_get_encrypted_filename(bs));
@ -5414,6 +5397,7 @@ int monitor_read_block_device_key(Monitor *mon, const char *device,
BlockCompletionFunc *completion_cb, BlockCompletionFunc *completion_cb,
void *opaque) void *opaque)
{ {
Error *err = NULL;
BlockBackend *blk; BlockBackend *blk;
blk = blk_by_name(device); blk = blk_by_name(device);
@ -5422,7 +5406,16 @@ int monitor_read_block_device_key(Monitor *mon, const char *device,
return -1; return -1;
} }
bdrv_add_key(blk_bs(blk), NULL, &err);
if (err) {
error_free(err);
return monitor_read_bdrv_key_start(mon, blk_bs(blk), completion_cb, opaque); return monitor_read_bdrv_key_start(mon, blk_bs(blk), completion_cb, opaque);
}
if (completion_cb) {
completion_cb(opaque, 0);
}
return 0;
} }
QemuOptsList qemu_mon_opts = { QemuOptsList qemu_mon_opts = {