From 642b704cd7a29be0b8900971eb525086c1c995b7 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Wed, 19 Jun 2013 10:08:10 +1000
Subject: minix: bug widening a binary "not" operation

"chunk_size" is an unsigned int and "pos" is an unsigned long.  The
"& ~(chunk_size-1)" operation clears the high 32 bits unintentionally.

The ALIGN() macro does the correct thing.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
 fs/minix/dir.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/minix/dir.c b/fs/minix/dir.c
index 08c442902fcd..dfaf6fa9b7b5 100644
--- a/fs/minix/dir.c
+++ b/fs/minix/dir.c
@@ -93,7 +93,7 @@ static int minix_readdir(struct file *file, struct dir_context *ctx)
 	unsigned offset;
 	unsigned long n;
 
-	ctx->pos = pos = (pos + chunk_size-1) & ~(chunk_size-1);
+	ctx->pos = pos = ALIGN(pos, chunk_size);
 	if (pos >= inode->i_size)
 		return 0;
 
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