Commit b8230243 authored by Rebecca Schultz Zavin's avatar Rebecca Schultz Zavin Committed by Greg Kroah-Hartman
Browse files

gpu: ion: Only map as much of the vma as the user requested 



Signed-off-by: default avatarRebecca Schultz Zavin <rebecca@android.com>
[jstultz: modified patch to apply to staging directory]
Signed-off-by: default avatarJohn Stultz <john.stultz@linaro.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 55808b8d

drivers/staging/android/ion/ion_system_heap.c

+2 −0
Original line number Diff line number Diff line
@@ -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;

}