diff options
Diffstat (limited to 'block/sheepdog.c')
| -rw-r--r-- | block/sheepdog.c | 35 |
1 files changed, 22 insertions, 13 deletions
diff --git a/block/sheepdog.c b/block/sheepdog.c index 991133e08b..6d52277a89 100644 --- a/block/sheepdog.c +++ b/block/sheepdog.c @@ -1249,24 +1249,26 @@ out: static int sd_create(const char *filename, QEMUOptionParameter *options) { - int ret; + int ret = 0; uint32_t vid = 0, base_vid = 0; int64_t vdi_size = 0; char *backing_file = NULL; - BDRVSheepdogState s; + BDRVSheepdogState *s; char vdi[SD_MAX_VDI_LEN], tag[SD_MAX_VDI_TAG_LEN]; uint32_t snapid; int prealloc = 0; const char *vdiname; + s = g_malloc0(sizeof(BDRVSheepdogState)); + strstart(filename, "sheepdog:", &vdiname); - memset(&s, 0, sizeof(s)); memset(vdi, 0, sizeof(vdi)); memset(tag, 0, sizeof(tag)); - if (parse_vdiname(&s, vdiname, vdi, &snapid, tag) < 0) { + if (parse_vdiname(s, vdiname, vdi, &snapid, tag) < 0) { error_report("invalid filename"); - return -EINVAL; + ret = -EINVAL; + goto out; } while (options && options->name) { @@ -1282,7 +1284,8 @@ static int sd_create(const char *filename, QEMUOptionParameter *options) } else { error_report("Invalid preallocation mode: '%s'", options->value.s); - return -EINVAL; + ret = -EINVAL; + goto out; } } options++; @@ -1290,7 +1293,8 @@ static int sd_create(const char *filename, QEMUOptionParameter *options) if (vdi_size > SD_MAX_VDI_SIZE) { error_report("too big image size"); - return -EINVAL; + ret = -EINVAL; + goto out; } if (backing_file) { @@ -1302,12 +1306,13 @@ static int sd_create(const char *filename, QEMUOptionParameter *options) drv = bdrv_find_protocol(backing_file); if (!drv || strcmp(drv->protocol_name, "sheepdog") != 0) { error_report("backing_file must be a sheepdog image"); - return -EINVAL; + ret = -EINVAL; + goto out; } ret = bdrv_file_open(&bs, backing_file, 0); if (ret < 0) { - return ret; + goto out; } s = bs->opaque; @@ -1315,19 +1320,23 @@ static int sd_create(const char *filename, QEMUOptionParameter *options) if (!is_snapshot(&s->inode)) { error_report("cannot clone from a non snapshot vdi"); bdrv_delete(bs); - return -EINVAL; + ret = -EINVAL; + goto out; } base_vid = s->inode.vdi_id; bdrv_delete(bs); } - ret = do_sd_create(vdi, vdi_size, base_vid, &vid, 0, s.addr, s.port); + ret = do_sd_create(vdi, vdi_size, base_vid, &vid, 0, s->addr, s->port); if (!prealloc || ret) { - return ret; + goto out; } - return sd_prealloc(filename); + ret = sd_prealloc(filename); +out: + g_free(s); + return ret; } static void sd_close(BlockDriverState *bs) |