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[PULL 3/4] block/nbd: extract the common cleanup code
From: |
Eric Blake |
Subject: |
[PULL 3/4] block/nbd: extract the common cleanup code |
Date: |
Wed, 26 Feb 2020 19:54:47 -0600 |
From: Pan Nengyuan <address@hidden>
The BDRVNBDState cleanup code is common in two places, add
nbd_clear_bdrvstate() function to do these cleanups.
Suggested-by: Stefano Garzarella <address@hidden>
Signed-off-by: Pan Nengyuan <address@hidden>
Reviewed-by: Vladimir Sementsov-Ogievskiy <address@hidden>
Message-Id: <address@hidden>
Reviewed-by: Eric Blake <address@hidden>
[eblake: fix compilation error and commit message]
Signed-off-by: Eric Blake <address@hidden>
---
block/nbd.c | 26 +++++++++++++++-----------
1 file changed, 15 insertions(+), 11 deletions(-)
diff --git a/block/nbd.c b/block/nbd.c
index f69e61e68ad6..ed0f93ab27a9 100644
--- a/block/nbd.c
+++ b/block/nbd.c
@@ -95,6 +95,19 @@ typedef struct BDRVNBDState {
static int nbd_client_connect(BlockDriverState *bs, Error **errp);
+static void nbd_clear_bdrvstate(BDRVNBDState *s)
+{
+ object_unref(OBJECT(s->tlscreds));
+ qapi_free_SocketAddress(s->saddr);
+ s->saddr = NULL;
+ g_free(s->export);
+ s->export = NULL;
+ g_free(s->tlscredsid);
+ s->tlscredsid = NULL;
+ g_free(s->x_dirty_bitmap);
+ s->x_dirty_bitmap = NULL;
+}
+
static void nbd_channel_error(BDRVNBDState *s, int ret)
{
if (ret == -EIO) {
@@ -1879,11 +1892,7 @@ static int nbd_process_options(BlockDriverState *bs,
QDict *options,
error:
if (ret < 0) {
- object_unref(OBJECT(s->tlscreds));
- qapi_free_SocketAddress(s->saddr);
- g_free(s->export);
- g_free(s->tlscredsid);
- g_free(s->x_dirty_bitmap);
+ nbd_clear_bdrvstate(s);
}
qemu_opts_del(opts);
return ret;
@@ -1962,12 +1971,7 @@ static void nbd_close(BlockDriverState *bs)
BDRVNBDState *s = bs->opaque;
nbd_client_close(bs);
-
- object_unref(OBJECT(s->tlscreds));
- qapi_free_SocketAddress(s->saddr);
- g_free(s->export);
- g_free(s->tlscredsid);
- g_free(s->x_dirty_bitmap);
+ nbd_clear_bdrvstate(s);
}
static int64_t nbd_getlength(BlockDriverState *bs)
--
2.24.1