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| author | Stefan Hajnoczi | 2011-12-15 11:05:18 +0100 |
|---|---|---|
| committer | Anthony Liguori | 2011-12-15 16:27:23 +0100 |
| commit | db3a5ed7e4422491dac1f83264ebb01f6667ffc8 (patch) | |
| tree | 59172a410fa2fa10b11c1c221a6e493f5a7d6945 /HACKING | |
| parent | exec.c: Fix subpage memory access to RAM MemoryRegion (diff) | |
| download | qemu-db3a5ed7e4422491dac1f83264ebb01f6667ffc8.tar.gz qemu-db3a5ed7e4422491dac1f83264ebb01f6667ffc8.tar.xz qemu-db3a5ed7e4422491dac1f83264ebb01f6667ffc8.zip | |
usb: fix usb_qdev_init() error handling again
Commit f462141f18ffdd75847f6459ef83d90b831d12c0 introduced clean up code
when usb_qdev_init() fails. Unfortunately it calls .handle_destroy()
when .init() was never invoked or failed. This can lead to crashes when
.handle_destroy() tries to clean up things that were never initialized.
This patch is careful to undo only those steps that completed along the
usb_qdev_init() code path. It's not as pretty as the unified error
handling in f462141f18ffdd75847f6459ef83d90b831d12c0 but it's necessary.
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat (limited to 'HACKING')
0 files changed, 0 insertions, 0 deletions