[PATCH] iommu/amd: tell kmemleak about the irq_remap_table

[Lucas Stach]

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 <***@lynxeye.de>
---
drivers/iommu/amd_iommu_init.c | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/drivers/iommu/amd_iommu_init.c b/drivers/iommu/amd_iommu_init.c
index 157e934..971154c 100644
--- a/drivers/iommu/amd_iommu_init.c
+++ b/drivers/iommu/amd_iommu_init.c
@@ -28,6 +28,7 @@
#include <linux/amd-iommu.h>
#include <linux/export.h>
#include <linux/iommu.h>
+#include <linux/kmemleak.h>
#include <asm/pci-direct.h>
#include <asm/iommu.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)
{
+ kmemleak_free(irq_lookup_table);
free_pages((unsigned long)irq_lookup_table,
get_order(rlookup_table_size));

@@ -2321,6 +2323,8 @@ static int __init early_amd_iommu_init(void)
irq_lookup_table = (void *)__get_free_pages(
GFP_KERNEL | __GFP_ZERO,
get_order(rlookup_table_size));
+ kmemleak_alloc(irq_lookup_table, rlookup_table_size,
+ 1, GFP_KERNEL);
if (!irq_lookup_table)
goto out;
}

[Joerg Roedel]

Post by Lucas Stach
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.
---
drivers/iommu/amd_iommu_init.c | 4 ++++
1 file changed, 4 insertions(+)

Applied, thanks.