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envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=40.107.21.133; envelope-from=vsementsov@virtuozzo.com; helo=EUR05-VI1-obe.outbound.protection.outlook.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, MSGID_FROM_MTA_HEADER=0.001, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: kwolf@redhat.com, vsementsov@virtuozzo.com, berto@igalia.com, pavel.dovgaluk@ispras.ru, qemu-devel@nongnu.org, armbru@redhat.com, Greg Kurz , stefanha@redhat.com, pbonzini@redhat.com, mreitz@redhat.com, jsnow@redhat.com, ari@tuxera.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @virtuozzo.com) Content-Type: text/plain; charset="utf-8" Don't use error propagation in qcow2_get_specific_info(). For this refactor qcow2_get_bitmap_info_list, its current interface is rather weird. Signed-off-by: Vladimir Sementsov-Ogievskiy Reviewed-by: Greg Kurz Reviewed-by: Alberto Garcia --- block/qcow2.h | 4 ++-- block/qcow2-bitmap.c | 28 ++++++++++++++-------------- block/qcow2.c | 10 +++------- 3 files changed, 19 insertions(+), 23 deletions(-) diff --git a/block/qcow2.h b/block/qcow2.h index 0678073b74..a6bf2881bb 100644 --- a/block/qcow2.h +++ b/block/qcow2.h @@ -979,8 +979,8 @@ int qcow2_check_bitmaps_refcounts(BlockDriverState *bs,= BdrvCheckResult *res, void **refcount_table, int64_t *refcount_table_size); bool qcow2_load_dirty_bitmaps(BlockDriverState *bs, Error **errp); -Qcow2BitmapInfoList *qcow2_get_bitmap_info_list(BlockDriverState *bs, - Error **errp); +bool qcow2_get_bitmap_info_list(BlockDriverState *bs, + Qcow2BitmapInfoList **info_list, Error **e= rrp); int qcow2_reopen_bitmaps_rw(BlockDriverState *bs, Error **errp); int qcow2_truncate_bitmaps_check(BlockDriverState *bs, Error **errp); void qcow2_store_persistent_dirty_bitmaps(BlockDriverState *bs, diff --git a/block/qcow2-bitmap.c b/block/qcow2-bitmap.c index d7a31a8ddc..55cd52ab96 100644 --- a/block/qcow2-bitmap.c +++ b/block/qcow2-bitmap.c @@ -1093,30 +1093,30 @@ static Qcow2BitmapInfoFlagsList *get_bitmap_info_fl= ags(uint32_t flags) /* * qcow2_get_bitmap_info_list() * Returns a list of QCOW2 bitmap details. - * In case of no bitmaps, the function returns NULL and - * the @errp parameter is not set. - * When bitmap information can not be obtained, the function returns - * NULL and the @errp parameter is set. + * On success return true with info_list set (note, that if there are no + * bitmaps, info_list is set to NULL). + * On failure return false with errp set. */ -Qcow2BitmapInfoList *qcow2_get_bitmap_info_list(BlockDriverState *bs, - Error **errp) +bool qcow2_get_bitmap_info_list(BlockDriverState *bs, + Qcow2BitmapInfoList **info_list, Error **e= rrp) { BDRVQcow2State *s =3D bs->opaque; Qcow2BitmapList *bm_list; Qcow2Bitmap *bm; - Qcow2BitmapInfoList *list =3D NULL; - Qcow2BitmapInfoList **plist =3D &list; =20 if (s->nb_bitmaps =3D=3D 0) { - return NULL; + *info_list =3D NULL; + return true; } =20 bm_list =3D bitmap_list_load(bs, s->bitmap_directory_offset, s->bitmap_directory_size, errp); - if (bm_list =3D=3D NULL) { - return NULL; + if (!bm_list) { + return false; } =20 + *info_list =3D NULL; + QSIMPLEQ_FOREACH(bm, bm_list, entry) { Qcow2BitmapInfo *info =3D g_new0(Qcow2BitmapInfo, 1); Qcow2BitmapInfoList *obj =3D g_new0(Qcow2BitmapInfoList, 1); @@ -1124,13 +1124,13 @@ Qcow2BitmapInfoList *qcow2_get_bitmap_info_list(Blo= ckDriverState *bs, info->name =3D g_strdup(bm->name); info->flags =3D get_bitmap_info_flags(bm->flags & ~BME_RESERVED_FL= AGS); obj->value =3D info; - *plist =3D obj; - plist =3D &obj->next; + *info_list =3D obj; + info_list =3D &obj->next; } =20 bitmap_list_free(bm_list); =20 - return list; + return true; } =20 int qcow2_reopen_bitmaps_rw(BlockDriverState *bs, Error **errp) diff --git a/block/qcow2.c b/block/qcow2.c index e8dd42d73b..1e83c6cebe 100644 --- a/block/qcow2.c +++ b/block/qcow2.c @@ -5063,12 +5063,10 @@ static ImageInfoSpecific *qcow2_get_specific_info(B= lockDriverState *bs, BDRVQcow2State *s =3D bs->opaque; ImageInfoSpecific *spec_info; QCryptoBlockInfo *encrypt_info =3D NULL; - Error *local_err =3D NULL; =20 if (s->crypto !=3D NULL) { - encrypt_info =3D qcrypto_block_get_info(s->crypto, &local_err); - if (local_err) { - error_propagate(errp, local_err); + encrypt_info =3D qcrypto_block_get_info(s->crypto, errp); + if (!encrypt_info) { return NULL; } } @@ -5085,9 +5083,7 @@ static ImageInfoSpecific *qcow2_get_specific_info(Blo= ckDriverState *bs, }; } else if (s->qcow_version =3D=3D 3) { Qcow2BitmapInfoList *bitmaps; - bitmaps =3D qcow2_get_bitmap_info_list(bs, &local_err); - if (local_err) { - error_propagate(errp, local_err); + if (!qcow2_get_bitmap_info_list(bs, &bitmaps, errp)) { qapi_free_ImageInfoSpecific(spec_info); qapi_free_QCryptoBlockInfo(encrypt_info); return NULL; --=20 2.29.2