qemu-e2k/block
Peter Maydell 6764579f89 block/cow: Avoid use of uninitialized cow_bs in error path
Commit 25814e8987 introduced an error-exit code path which does
a "goto exit" before the cow_bs variable is initialized, meaning
we would call bdrv_unref() on an uninitialized variable and
likely segfault. Fix this by moving the NULL-initialization
to the top of the function and making the exit code path handle
the case where it is NULL.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-07-01 10:15:34 +02:00
..
backup.c qapi: adjust existing defines 2014-06-23 11:01:25 -04:00
blkdebug.c blkdebug: use BlockDriverState's AioContext 2014-06-04 09:56:11 +02:00
blkverify.c blkverify: implement .bdrv_detach/attach_aio_context() 2014-06-04 09:56:11 +02:00
bochs.c block/bochs: Fix error handling for seek_to_sector() 2014-04-30 14:46:17 +02:00
cloop.c
commit.c
cow.c block/cow: Avoid use of uninitialized cow_bs in error path 2014-07-01 10:15:34 +02:00
curl.c block: Drop superfluous conditionals around g_free() 2014-06-16 17:23:19 +08:00
dmg.c block: Use correct width in format strings 2014-04-30 14:46:17 +02:00
gluster.c cleanup QEMUOptionParameter 2014-06-16 17:23:21 +08:00
iscsi.c Fix new typos (found by codespell) 2014-06-24 20:01:24 +04:00
linux-aio.c block/linux-aio: fix memory and fd leak 2014-06-04 09:56:11 +02:00
Makefile.objs
mirror.c block: Add replaces argument to drive-mirror 2014-06-27 20:00:00 +02:00
nbd-client.c nbd: implement .bdrv_detach/attach_aio_context() 2014-06-04 09:56:11 +02:00
nbd-client.h nbd: implement .bdrv_detach/attach_aio_context() 2014-06-04 09:56:11 +02:00
nbd.c nbd: implement .bdrv_detach/attach_aio_context() 2014-06-04 09:56:11 +02:00
nfs.c block/nfs: add knob to set readahead 2014-06-26 13:51:01 +02:00
parallels.c
qapi.c block: acquire AioContext in qmp_query_blockstats() 2014-06-27 18:20:29 +02:00
qcow2-cache.c
qcow2-cluster.c qcow2: Fix memory leak in COW error path 2014-05-28 14:28:46 +02:00
qcow2-refcount.c qapi event: convert BLOCK_IMAGE_CORRUPTED 2014-06-23 11:12:27 -04:00
qcow2-snapshot.c
qcow2.c block: Catch backing files assigned to non-COW drivers 2014-06-26 13:51:01 +02:00
qcow2.h
qcow.c block: Catch backing files assigned to non-COW drivers 2014-06-26 13:51:01 +02:00
qed-check.c
qed-cluster.c
qed-gencb.c
qed-l2-cache.c
qed-table.c qed: use BlockDriverState's AioContext 2014-06-04 09:56:11 +02:00
qed.c qemu-img create: add 'nocow' option 2014-07-01 10:15:12 +02:00
qed.h qed.c: replace QEMUOptionParameter with QemuOpts 2014-06-16 17:23:21 +08:00
quorum.c quorum: Add the rewrite-corrupted parameter to quorum 2014-06-27 14:18:17 +02:00
raw_bsd.c cleanup QEMUOptionParameter 2014-06-16 17:23:21 +08:00
raw-aio.h block/raw-win32: implement .bdrv_detach/attach_aio_context() 2014-06-04 09:56:12 +02:00
raw-posix.c qemu-img create: add 'nocow' option 2014-07-01 10:15:12 +02:00
raw-win32.c cleanup QEMUOptionParameter 2014-06-16 17:23:21 +08:00
rbd.c cleanup QEMUOptionParameter 2014-06-16 17:23:21 +08:00
sheepdog.c sheepdog: fix NULL dereference in sd_create 2014-06-23 16:36:13 +08:00
snapshot.c
ssh.c cleanup QEMUOptionParameter 2014-06-16 17:23:21 +08:00
stream.c qapi: adjust existing defines 2014-06-23 11:01:25 -04:00
vdi.c qemu-img create: add 'nocow' option 2014-07-01 10:15:12 +02:00
vhdx-endian.c
vhdx-log.c
vhdx.c cleanup QEMUOptionParameter 2014-06-16 17:23:21 +08:00
vhdx.h vhdx.c: replace QEMUOptionParameter with QemuOpts 2014-06-16 17:23:21 +08:00
vmdk.c qemu-img create: add 'nocow' option 2014-07-01 10:15:12 +02:00
vpc.c qemu-img create: add 'nocow' option 2014-07-01 10:15:12 +02:00
vvfat.c cleanup QEMUOptionParameter 2014-06-16 17:23:21 +08:00
win32-aio.c block/raw-win32: implement .bdrv_detach/attach_aio_context() 2014-06-04 09:56:12 +02:00