From b1b27b64262fdace45e5ab134c4438338076cb98 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Marc-Andr=C3=A9=20Lureau?= Date: Sun, 1 Dec 2013 22:23:46 +0100 Subject: [PATCH] nbd: avoid uninitialized warnings MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit ==15815== Thread 1: ==15815== Syscall param socketcall.sendto(msg) points to uninitialised byte(s) ==15815== at 0x65AD5CB: send (send.c:31) ==15815== by 0x37F84B: nbd_wr_sync (nbd.c:145) ==15815== by 0x37F94B: write_sync (nbd.c:186) ==15815== by 0x380FA9: nbd_send_request (nbd.c:681) ==15815== by 0x1C4A2D: nbd_teardown_connection (nbd-client.c:337) ==15815== by 0x1C4AD8: nbd_client_session_close (nbd-client.c:354) ==15815== by 0x1ED2D8: close_socketpair (spicebd.c:132) ==15815== by 0x1EE265: spice_close (spicebd.c:457) ==15815== by 0x1ACBF6: bdrv_close (block.c:1519) ==15815== by 0x1AD804: bdrv_delete (block.c:1772) ==15815== by 0x1B4136: bdrv_unref (block.c:4476) ==15815== by 0x1ACCE0: bdrv_close (block.c:1541) ==15815== Address 0x7feffef98 is on thread 1's stack Signed-off-by: Marc-André Lureau Acked-by: Paolo Bonzini Signed-off-by: Gerd Hoffmann --- block/nbd-client.c | 21 +++++++++------------ 1 file changed, 9 insertions(+), 12 deletions(-) diff --git a/block/nbd-client.c b/block/nbd-client.c index 1973cf0dfe..0922b78292 100644 --- a/block/nbd-client.c +++ b/block/nbd-client.c @@ -185,11 +185,10 @@ static int nbd_co_readv_1(NbdClientSession *client, int64_t sector_num, int nb_sectors, QEMUIOVector *qiov, int offset) { - struct nbd_request request; + struct nbd_request request = { .type = NBD_CMD_READ }; struct nbd_reply reply; ssize_t ret; - request.type = NBD_CMD_READ; request.from = sector_num * 512; request.len = nb_sectors * 512; @@ -209,11 +208,10 @@ static int nbd_co_writev_1(NbdClientSession *client, int64_t sector_num, int nb_sectors, QEMUIOVector *qiov, int offset) { - struct nbd_request request; + struct nbd_request request = { .type = NBD_CMD_WRITE }; struct nbd_reply reply; ssize_t ret; - request.type = NBD_CMD_WRITE; if (!bdrv_enable_write_cache(client->bs) && (client->nbdflags & NBD_FLAG_SEND_FUA)) { request.type |= NBD_CMD_FLAG_FUA; @@ -275,7 +273,7 @@ int nbd_client_session_co_writev(NbdClientSession *client, int64_t sector_num, int nbd_client_session_co_flush(NbdClientSession *client) { - struct nbd_request request; + struct nbd_request request = { .type = NBD_CMD_FLUSH }; struct nbd_reply reply; ssize_t ret; @@ -283,7 +281,6 @@ int nbd_client_session_co_flush(NbdClientSession *client) return 0; } - request.type = NBD_CMD_FLUSH; if (client->nbdflags & NBD_FLAG_SEND_FUA) { request.type |= NBD_CMD_FLAG_FUA; } @@ -305,14 +302,13 @@ int nbd_client_session_co_flush(NbdClientSession *client) int nbd_client_session_co_discard(NbdClientSession *client, int64_t sector_num, int nb_sectors) { - struct nbd_request request; + struct nbd_request request = { .type = NBD_CMD_TRIM }; struct nbd_reply reply; ssize_t ret; if (!(client->nbdflags & NBD_FLAG_SEND_TRIM)) { return 0; } - request.type = NBD_CMD_TRIM; request.from = sector_num * 512; request.len = nb_sectors * 512; @@ -330,11 +326,12 @@ int nbd_client_session_co_discard(NbdClientSession *client, int64_t sector_num, static void nbd_teardown_connection(NbdClientSession *client) { - struct nbd_request request; + struct nbd_request request = { + .type = NBD_CMD_DISC, + .from = 0, + .len = 0 + }; - request.type = NBD_CMD_DISC; - request.from = 0; - request.len = 0; nbd_send_request(client->sock, &request); /* finish any pending coroutines */ -- 2.11.4.GIT