[PATCH 100/115] ion: add alignment check to carveout heap

[John Stultz]

From: Colin Cross <ccross@xxxxxxxxxxx>

Signed-off-by: Colin Cross <ccross@xxxxxxxxxxx>
Signed-off-by: John Stultz <john.stultz@xxxxxxxxxx>
---
 drivers/staging/android/ion/ion_carveout_heap.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/staging/android/ion/ion_carveout_heap.c b/drivers/staging/android/ion/ion_carveout_heap.c
index 1d53e91..b0b08c3 100644
--- a/drivers/staging/android/ion/ion_carveout_heap.c
+++ b/drivers/staging/android/ion/ion_carveout_heap.c
@@ -70,6 +70,9 @@ static int ion_carveout_heap_allocate(struct ion_heap *heap,
 				      unsigned long size, unsigned long align,
 				      unsigned long flags)
 {
+	if (align > PAGE_SIZE)
+		return -EINVAL;
+
 	buffer->priv_phys = ion_carveout_allocate(heap, size, align);
 	return buffer->priv_phys == ION_CARVEOUT_ALLOCATE_FAIL ? -ENOMEM : 0;
 }
-- 
1.8.3.2

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