haraldwolff/qemu-patch-raspberry4
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nbd: avoid uninitialized warnings

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==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 <marcandre.lureau@gmail.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Marc-André Lureau 2013-12-01 22:23:46 +01:00 committed by Gerd Hoffmann
parent 69152c09d3
commit b1b27b6426
1 changed files with 9 additions and 12 deletions
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21
block/nbd-client.c
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@ -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 */