From: Hugh Dickins <hugh@veritas.com>
Date: Wed, 22 Jun 2005 00:15:09 +0000 (-0700)
Subject: [PATCH] rme96xx: fix PageReserved range
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=7c2f3fda5666c280bcd00ac3b86963270b23e796;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

[PATCH] rme96xx: fix PageReserved range

rme96xx busmaster_malloc miscalculates and fails to set PageReserved on any
page of char *buf; but busmaster_free does it right, so do the same (I
don't have the card, just noticed this while sifting for rmap BUGs).

Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/sound/oss/rme96xx.c b/sound/oss/rme96xx.c
index 76774bbc1436..b4278eecc917 100644
--- a/sound/oss/rme96xx.c
+++ b/sound/oss/rme96xx.c
@@ -807,7 +807,7 @@ static void* busmaster_malloc(int size) {
                 struct page* page, *last_page;
 
                 page = virt_to_page(buf);
-                last_page = virt_to_page(buf + (1 << pg));
+                last_page = page + (1 << pg);
                 DBG(printk("setting reserved bit\n"));
                 while (page < last_page) {
 			SetPageReserved(page);