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iommu/amd: Tell kmemleak about the irq_remap_table

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This will get rid of a lot false positives caused by kmemleak being
unaware of the irq_remap_table. Based on a suggestion from Catalin Marinas.

Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Lucas Stach
2016-10-26 13:09:53 +02:00
committed by Joerg Roedel
parent bc33b0ca11
commit ebcfa28439
1 changed files with 4 additions and 0 deletions
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drivers/iommu/amd_iommu_init.c
+4
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@@ -28,6 +28,7 @@
#include <linux/amd-iommu.h> #include <linux/amd-iommu.h>
#include <linux/export.h> #include <linux/export.h>
#include <linux/iommu.h> #include <linux/iommu.h>
#include <linux/kmemleak.h>
#include <asm/pci-direct.h> #include <asm/pci-direct.h>
#include <asm/iommu.h> #include <asm/iommu.h>
#include <asm/gart.h> #include <asm/gart.h>
@@ -2090,6 +2091,7 @@ static struct syscore_ops amd_iommu_syscore_ops = {
static void __init free_on_init_error(void) static void __init free_on_init_error(void)
{ {
kmemleak_free(irq_lookup_table);
free_pages((unsigned long)irq_lookup_table, free_pages((unsigned long)irq_lookup_table,
get_order(rlookup_table_size)); get_order(rlookup_table_size));
@@ -2321,6 +2323,8 @@ static int __init early_amd_iommu_init(void)
irq_lookup_table = (void *)__get_free_pages( irq_lookup_table = (void *)__get_free_pages(
GFP_KERNEL | __GFP_ZERO, GFP_KERNEL | __GFP_ZERO,
get_order(rlookup_table_size)); get_order(rlookup_table_size));
kmemleak_alloc(irq_lookup_table, rlookup_table_size,
1, GFP_KERNEL);
if (!irq_lookup_table) if (!irq_lookup_table)
goto out; goto out;
} }