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qcow2: Fix segfault on zero-length write
authorKevin Wolf <kwolf@redhat.com>
Mon, 14 Jan 2013 16:31:31 +0000 (17:31 +0100)
committerStefan Hajnoczi <stefanha@redhat.com>
Tue, 15 Jan 2013 08:08:55 +0000 (09:08 +0100)
commit8d2497c3552e19a60e7a75d20976471ecb2a8e2b
treed0059fd766a2d4a024d6d42a4f1a26dea4b3c8a5tree
parentcf7c3f0cb5a7129f57fa9e69d410d6a05031988ccommit | diff
qcow2: Fix segfault on zero-length write

One of the recent refactoring patches (commit f50f88b9) didn't take care
to initialise l2meta properly, so with zero-length writes, which don't
even enter the write loop, qemu just segfaulted.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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