From 23c1713fe9e6ac886a4d44415298d0cbb2e83df2 Mon Sep 17 00:00:00 2001
From: Joerg Roedel <joerg.roedel@amd.com>
Date: Wed, 17 Sep 2008 17:18:17 +0200
Subject: [PATCH] AMD IOMMU: use cmd_buf_size when freeing the command buffer
The command buffer release function uses the CMD_BUF_SIZE macro for
get_order. Replace this with iommu->cmd_buf_size which is more reliable
about the actual size of the buffer.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
arch/x86/kernel/amd_iommu_init.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/x86/kernel/amd_iommu_init.c b/arch/x86/kernel/amd_iommu_init.c
index 80250e63bd07e..db0c83af44dec 100644
--- a/arch/x86/kernel/amd_iommu_init.c
+++ b/arch/x86/kernel/amd_iommu_init.c
@@ -433,7 +433,8 @@ static u8 * __init alloc_command_buffer(struct amd_iommu *iommu)
static void __init free_command_buffer(struct amd_iommu *iommu)
{
- free_pages((unsigned long)iommu->cmd_buf, get_order(CMD_BUFFER_SIZE));
+ free_pages((unsigned long)iommu->cmd_buf,
+ get_order(iommu->cmd_buf_size));
}
/* allocates the memory where the IOMMU will log its events to */
--
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