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blockdev: Replace "undefined error" in qmp_block_resize

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We have an errno value that can be displayed, so we should just do that.
An easy way to reproduce this case is to resize a raw image to a size
that is too large for the host file system.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Kevin Wolf 2013-05-02 15:32:55 +02:00 committed by Stefan Hajnoczi
parent 059e2fbbca
commit 8732901e1b
1 changed files with 4 additions and 2 deletions
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6
blockdev.c
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@ -1118,6 +1118,7 @@ int do_drive_del(Monitor *mon, const QDict *qdict, QObject **ret_data)
void qmp_block_resize(const char *device, int64_t size, Error **errp) void qmp_block_resize(const char *device, int64_t size, Error **errp)
{ {
BlockDriverState *bs; BlockDriverState *bs;
int ret;
bs = bdrv_find(device); bs = bdrv_find(device);
if (!bs) { if (!bs) {
@ -1133,7 +1134,8 @@ void qmp_block_resize(const char *device, int64_t size, Error **errp)
/* complete all in-flight operations before resizing the device */ /* complete all in-flight operations before resizing the device */
bdrv_drain_all(); bdrv_drain_all();
switch (bdrv_truncate(bs, size)) { ret = bdrv_truncate(bs, size);
switch (ret) {
case 0: case 0:
break; break;
case -ENOMEDIUM: case -ENOMEDIUM:
@ -1149,7 +1151,7 @@ void qmp_block_resize(const char *device, int64_t size, Error **errp)
error_set(errp, QERR_DEVICE_IN_USE, device); error_set(errp, QERR_DEVICE_IN_USE, device);
break; break;
default: default:
error_set(errp, QERR_UNDEFINED_ERROR); error_setg_errno(errp, -ret, "Could not resize");
break; break;
} }
} }