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drm/radeon: r6xx/r7xx: fix possible oops in r600_page_table_cleanup()

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Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Alex Deucher 2009-03-07 18:21:21 -05:00 committed by Dave Airlie
parent 53c379e946
commit 08932156cc
1 changed files with 3 additions and 0 deletions
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drivers/gpu/drm/radeon/r600_cp.c
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@ -121,6 +121,9 @@ void r600_page_table_cleanup(struct drm_device *dev, struct drm_ati_pcigart_info
int pages;
int i;
if (!entry)
return;
if (gart_info->bus_addr) {
max_pages = (gart_info->table_size / sizeof(u32));
pages = (entry->pages <= max_pages)