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staging: vchiq_2835_arm: Handle vmalloc_to_page error case

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In case vmalloc_to_page returns NULL create_pagelist must abort
imediatly.

Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Stefan Wahren 2017-05-26 00:26:17 +02:00 committed by Greg Kroah-Hartman
parent 804980adb9
commit 025f69ade9
1 changed files with 5 additions and 0 deletions
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5
drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c
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@ -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;