xen/acpi: Fix potential memory leak.
Coverity points out that we do not free in one case the pr_backup - and sure enough we forgot. Found by Coverity (CID 401970) Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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@ -520,15 +520,18 @@ static int __init xen_acpi_processor_init(void)
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if (!pr_backup) {
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if (!pr_backup) {
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pr_backup = kzalloc(sizeof(struct acpi_processor), GFP_KERNEL);
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pr_backup = kzalloc(sizeof(struct acpi_processor), GFP_KERNEL);
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memcpy(pr_backup, _pr, sizeof(struct acpi_processor));
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if (pr_backup)
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memcpy(pr_backup, _pr, sizeof(struct acpi_processor));
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}
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}
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(void)upload_pm_data(_pr);
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(void)upload_pm_data(_pr);
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}
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}
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rc = check_acpi_ids(pr_backup);
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rc = check_acpi_ids(pr_backup);
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if (rc)
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goto err_unregister;
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kfree(pr_backup);
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kfree(pr_backup);
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pr_backup = NULL;
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if (rc)
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goto err_unregister;
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return 0;
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return 0;
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err_unregister:
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err_unregister:
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