[PATCH v2 07/16] staging: vchiq_2835_arm: Handle vmalloc_to_page error case

[Stefan Wahren]

In case vmalloc_to_page returns NULL create_pagelist must abort
imediatly.

Signed-off-by: Stefan Wahren <stefan.wahren at i2se.com>
---
 drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c
index 8911e86..eeeee1b 100644
--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c
+++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c
@@ -459,6 +459,11 @@ create_pagelist(char __user *buf, size_t count, unsigned short type,
 								 PAGE_SIZE));
 			size_t bytes = PAGE_SIZE - off;
 
+			if (!pg) {
+				cleanup_pagelistinfo(pagelistinfo);
+				return NULL;
+			}
+
 			if (bytes > length)
 				bytes = length;
 			pages[actual_pages] = pg;
-- 
2.7.4