From f0f06763820e5b5f6e13afa814e68e8f4d955c45 Mon Sep 17 00:00:00 2001
From: Colin Cross <ccross@android.com>
Date: Fri, 13 Dec 2013 19:26:20 -0800
Subject: [PATCH] ion: add alignment check to carveout heap

Signed-off-by: Colin Cross <ccross@android.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 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 1d53e9120b90..b0b08c30f6f0 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;
 }
-- 
2.30.2