pci, x86, acpi: fix early_ioremap() leak (8e1568f3) · Commits · 戴 / test

Pawel reported: ------------[ cut here ]------------ WARNING: at arch/x86/mm/ioremap.c:616 check_early_ioremap_leak+0x52/0x67() Hardware name: Debug warning: early ioremap leak of 1 areas detected. Modules linked in: Pid: 1, comm: swapper Not tainted 2.6.29-rc4-tip #2 ... Reported-by:

Pawel Dziekonski <dzieko@gmail.com> Signed-off-by:

Yinghai Lu <yinghai@kernel.org> Signed-off-by:

Ingo Molnar <mingo@elte.hu>

drivers/pci/dmar.c

+5 −2

Original line number	Diff line number	Diff line
		@@ -42,6 +42,7 @@
		LIST_HEAD(dmar_drhd_units);

		static struct acpi_table_header * __initdata dmar_tbl;
		static acpi_size dmar_tbl_size;

		static void __init dmar_register_drhd_unit(struct dmar_drhd_unit *drhd)
		{
		@@ -288,8 +289,9 @@ static int __init dmar_table_detect(void)
		acpi_status status = AE_OK;

		/* if we could find DMAR table, then there are DMAR devices */
		status = acpi_get_table(ACPI_SIG_DMAR, 0,
		(struct acpi_table_header **)&dmar_tbl);
		status = acpi_get_table_with_size(ACPI_SIG_DMAR, 0,
		(struct acpi_table_header **)&dmar_tbl,
		&dmar_tbl_size);

		if (ACPI_SUCCESS(status) && !dmar_tbl) {
		printk (KERN_WARNING PREFIX "Unable to map DMAR\n");
		@@ -481,6 +483,7 @@ void __init detect_intel_iommu(void)
		iommu_detected = 1;
		#endif
		}
		early_acpi_os_unmap_memory(dmar_tbl, dmar_tbl_size);
		dmar_tbl = NULL;
		}

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