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qemu: monitor: Fix device matching in qemuMonitorJSONBlockIoThrottleInfo
We should compare the alias/qdev id only when it was provided by the caller and when it was found in the reply. Otherwise we could dereference a NULL pointer. STRNEQ_NULLABLE is not appropriate since it would return 'true' if the string was not present in the JSON output. Found by Coverity. Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: John Ferlan <jferlan@redhat.com>
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@ -5001,8 +5001,8 @@ qemuMonitorJSONBlockIoThrottleInfo(virJSONValuePtr io_throttle,
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goto cleanup;
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goto cleanup;
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}
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}
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if ((drivealias && STRNEQ(current_drive, drivealias)) ||
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if ((drivealias && current_drive && STRNEQ(current_drive, drivealias)) ||
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(qdevid && STRNEQ(current_qdev, qdevid)))
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(qdevid && current_qdev && STRNEQ(current_qdev, qdevid)))
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continue;
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continue;
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found = true;
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found = true;
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