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[Xen-devel] [PATCH 07/15] [swiotlb] In 'swiotlb_free' check iommu_sw pointer.
- To: fujita.tomonori@xxxxxxxxxxxxx, alex.williamson@xxxxxx, joerg.roedel@xxxxxxx, dwmw2@xxxxxxxxxxxxx, chrisw@xxxxxxxxxxxx, iommu@xxxxxxxxxxxxxxxxxxxxxxxxxx
- From: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
- Date: Thu, 14 Jan 2010 18:00:56 -0500
- Cc: Ian.Campbell@xxxxxxxxxxxxx, jeremy@xxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxx, Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
- Delivery-date: Thu, 14 Jan 2010 15:13:11 -0800
- List-id: Xen developer discussion <xen-devel.lists.xensource.com>
Previous to the usage of the iommu_sw pointer, we would check
if io_tlb_overflow_buffer was set and use that to determine whether
we had been called.
With the iommu_sw introduction, we just need to check whether that
pointer is not NULL.
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
---
lib/swiotlb.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/lib/swiotlb.c b/lib/swiotlb.c
index 3c7bd4e..72c9abe 100644
--- a/lib/swiotlb.c
+++ b/lib/swiotlb.c
@@ -364,7 +364,7 @@ cleanup1:
void __init swiotlb_free(void)
{
- if (!iommu_sw->overflow_buffer)
+ if (!iommu_sw)
return;
if (late_alloc) {
--
1.6.2.5
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