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aio: test node->deleted before calling io_flush

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Otherwise, there could be a case where io_flush accesses freed
memory because it should not have been called.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2012-09-26 15:21:36 +02:00
parent a915f4bc97
commit 4231c88d27
1 changed files with 1 additions and 1 deletions
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2
aio.c
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@ -122,7 +122,7 @@ bool aio_wait(AioContext *ctx)
* Otherwise, if there are no AIO requests, qemu_aio_wait() would
* wait indefinitely.
*/
if (node->io_flush) {
if (!node->deleted && node->io_flush) {
if (node->io_flush(node->opaque) == 0) {
continue;
}