From: Roman Zippel <zippel@linux-m68k.org>
Date: Tue, 2 Aug 2005 04:11:41 +0000 (-0700)
Subject: [PATCH] hfs: don't reference missing page
X-Git-Tag: v3.12-rc1~42883
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=74f9c9c258249fba3e2e78f70691528426a6c010;p=kernel%2Fkernel-generic.git

[PATCH] hfs: don't reference missing page

If there was a read error, the bnode might miss some pages, so skip them.

Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/fs/hfs/bnode.c b/fs/hfs/bnode.c
index 6ad1211..a096c5a 100644
--- a/fs/hfs/bnode.c
+++ b/fs/hfs/bnode.c
@@ -480,6 +480,8 @@ void hfs_bnode_put(struct hfs_bnode *node)
 			return;
 		}
 		for (i = 0; i < tree->pages_per_bnode; i++) {
+			if (!node->page[i])
+				continue;
 			mark_page_accessed(node->page[i]);
 #if REF_PAGES
 			put_page(node->page[i]);
diff --git a/fs/hfsplus/bnode.c b/fs/hfsplus/bnode.c
index 267872e..8868d3b 100644
--- a/fs/hfsplus/bnode.c
+++ b/fs/hfsplus/bnode.c
@@ -643,6 +643,8 @@ void hfs_bnode_put(struct hfs_bnode *node)
 			return;
 		}
 		for (i = 0; i < tree->pages_per_bnode; i++) {
+			if (!node->page[i])
+				continue;
 			mark_page_accessed(node->page[i]);
 #if REF_PAGES
 			put_page(node->page[i]);