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block: Add error parameter to blk_insert_bs()

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Now that blk_insert_bs() requests the BlockBackend permissions for the
node it attaches to, it can fail. Instead of aborting, pass the errors
to the callers.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Acked-by: Fam Zheng <famz@redhat.com>
This commit is contained in:
Kevin Wolf 2017-01-13 19:02:32 +01:00
parent 6d0eb64d5c
commit d7086422b1
14 changed files with 100 additions and 29 deletions
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6
hmp.c
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@ -2045,6 +2045,7 @@ void hmp_qemu_io(Monitor *mon, const QDict *qdict)
const char* device = qdict_get_str(qdict, "device");
const char* command = qdict_get_str(qdict, "command");
Error *err = NULL;
int ret;
blk = blk_by_name(device);
if (!blk) {
@ -2052,7 +2053,10 @@ void hmp_qemu_io(Monitor *mon, const QDict *qdict)
if (bs) {
/* FIXME Use real permissions */
blk = local_blk = blk_new(0, BLK_PERM_ALL);
blk_insert_bs(blk, bs);
ret = blk_insert_bs(blk, bs, &err);
if (ret < 0) {
goto fail;
}
} else {
goto fail;
}