From: Rebecca Schultz Zavin <[email protected]>
Signed-off-by: Rebecca Schultz Zavin <[email protected]>
[jstultz: modified patch to apply to staging directory]
Signed-off-by: John Stultz <[email protected]>
---
drivers/staging/android/ion/ion_system_heap.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/staging/android/ion/ion_system_heap.c
b/drivers/staging/android/ion/ion_system_heap.c
index 3f607df..7397bc4 100644
--- a/drivers/staging/android/ion/ion_system_heap.c
+++ b/drivers/staging/android/ion/ion_system_heap.c
@@ -192,6 +192,8 @@ int ion_system_heap_map_user(struct ion_heap *heap, struct
ion_buffer *buffer,
remap_pfn_range(vma, addr, page_to_pfn(sg_page(sg)),
sg_dma_len(sg), vma->vm_page_prot);
addr += sg_dma_len(sg);
+ if (addr >= vma->vm_end)
+ return 0;
}
return 0;
}
--
1.8.3.2
--
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